Mathematics High School

Subtract 3/x-1 - 4/x+3 (rational expression)
Please explain step by step!!

Answers

Answer 1

The value of 3/x-1 - 4/x+3 is (13-x)/(x-1)(x+3)

What are algebraic fractions?

Algebraic fractions are fractions using a variable in the numerator or denominator, such as . Because division by 0 is impossible, variables in the denominator have certain restrictions. The denominator can never equal 0.

The numerator and denominator are called the terms of the algebraic fraction.

We simplify the expression by finding the LCM of the denominator.

therefore 3( x+3) - 4(x-1))/(x-1)(x+3)

opening the parentheses

(3x+9-4x+4)/(x-1)(x+3)

= (13-x)/(x-1)(x+3)

Therefore the value of 3/x-1 - 4/x+3 is (13-x)/(x-1)(x+3)

learn more about algebraic fractions from

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Related Questions

in 10 years time a father Will be twice as old as his daughter.10 years ago he was six time as old as his daughter.How old is each now
​

Answers

Answer:

Step-by-step explanation:

let fathers age now be x

daughters age now be y

10 years hence

(x+10)= 2(y+10)

x+10 = 2y+20

x-2y=10

10 years ago

(x-10)= 6(y-10)

x-10 = 6y-60

x-6y=-50

x-2y=10

x-6y=-50

subtract the equations

4y=60

y=15 daughter's age now

substitute y in x-2y=10

so x=40 present father's age

pls mark brainliest

Answer:

Let the age 10 years ago of daughter be ( x years ) and age of father would be ( 6x years )

After 10 years, age of father = ( 6x + 10 + 10 )

= ( 6x + 20 ) years

And Age of daughter will be = ( x + 10 + 10 )

= ( x + 20 ) years

ATQ,

6x + 20 = 2( x + 20 )

=> 6x + 20 = 2x + 40

=> 6x - 2x = 40 - 20

=> 4x = 20

=> x = 5

Hence, Present age of daughter = ( x + 10 )

= ( 5 + 10 )

= 15 years

Present age of father = ( 6x + 10 )

= 6( 5 ) + 10

= 30 + 10

= 40 years

Step-by-step explanation:

your answer Miss.

Solve equation 3 + p = 8

Answers

Answer:

The answer is 5

Step-by-step explanation:

You can do inverse operation which is Subtraction.

8-3 = 5

Answer:

5

Step-by-step explanation:

if its not that i have no idea what to say

Please answer this question now. Giving brainliest to anyone who answers

Answers

Line p is perpendicular to S and the equation is y=x +3 which is D

A person walks 1/3 of a mile every half hour. How far
would the person walk in 2
hours?

Answers

Answer:

1 1/3 miles

Step-by-step explanation:

1/3 is for a half-mile, so double it to 2/3 for one mile.

Now double it again for two hours.

2/3 + 2/3 = 1 1/3 miles in two hours

Answer:

The person will walk 1 1/3 miles in 2 hours.

Step-by-step explanation:

There are 4 half-hours in 2 hour

1/3*4=4/3 or 1 1/3 miles

if f (x) = x² – 3, then find f (8) =

Answers

Answer:

61

Step-by-step explanation:

[tex]f(8)=8^2-3=64-3=61[/tex]

The cost of 7 scarves is $85.75. What is the unit price

Answers

Answer:

The cost of 1 scarf is $12.25 each.

Step-by-step explanation:

3 A pair of vertical angles is formed as shown.
175°
(5x + 30)
Which best represents the value of ?
A 29
B 1
C31
D41

Answers

Its A 29 plug in each number in replacement of X

Answer:

A - 29

Step-by-step explanation:

5x + 30 = 175

5x +30 -30 = 175 - 30

5x = 145

5x ÷ 5 = 145 ÷ 5

X = 29

What is the quotient of 9−x^2 divided by 3x and x^2+6x+9 divided by 3x?

Answers

Answer:

44 rem

Step-by-step explanation:

Sorry i dont have an explanation

2x-y+8z=13
3x+4y+52=18
5x-2y-72=20​

Answers

Answer:

Answer is above (In the image).

Step-by-step explanation:

I am not sure if that is what you were looking for. To convert it to decimals, just input the figures into your calculator.

In my opinion the best way to solve these equations are elimination, therefore I will be giving my answer in this way!

2x-y+8z=13 1️⃣

3x+4y+52=182️⃣

5x-2y-72=203️⃣

We first combine liked terms in equation 2 and 3.

2️⃣turns into 3x+4y=-34 let's call it 2️⃣'

3️⃣turns into 5x-2y=92 let's call it 3️⃣'

Then solve for x

3️⃣'*2

10x-4y=184

3️⃣+2️⃣

13x=150

x=150/13

Now substitute the x back into equation 2️⃣'

3*150/13+4y=-34

450/13+4y=-442/13

4y=-892/13

2y=-446/13

y=-223/13

Now we can substitute this back into 1️⃣ to solve for z

2*150/13- - 223/13+8z=169/13

523/13+8z=169/13

8z=-354/13

4z=-177/13

z=-177/52

This problem is kind of messy so let me restate my answer!

x=150/13

y=-223/13

z=-177/52

I really hoped this is correct and it helped, and would appreciate it if you give me brainlliest! If you have any more questions about my solution please ask me in the comments!

Write an addition, subtraction, multiplication, and division problem that all equal -3.

Answers

Answer:

-5+2

3-6

3 x -1

-6 divided by 2

I am very behind in edge, is anyone willing to help me?

Answers

Answer:

Whats the question?

Answer:

Yeeeee

Step-by-step explanation:

can someone help me pls 10 points

Answers

Answer:

They added +3x instead of subtracting it in the first step.

Step-by-step explanation:

Instead:

5x + 2 = 3x - 8

-3x         -3x

----------------------

2x + 2 = -8

      -2    -2

-----------------

2x = -10

/ 2    / 2

-----------

1x = -5

---------

x = -5

Find the volume of a cylinder that has the following dimensions. Do not round your answer. (Use 3.14 for TT.)
radius: 5 cm
height: 0.25 m
volume =
cm

Answers

Answer:

volume is πr^h

Step-by-step explanation:

3.14*5*5*0.25 is 1962.5cm^2

in m^2 it would be 19.625

What is the fifth term in the expansion of (3x - 3y)??
X²4A

Answers

Answer:

4

Step-by-step explanation:

Please help I’ve been on for 1/2 hours

Answers

1/2a-4                                        * = times

1/2*(a-8)

You deposit $300 in a savings account. The account earns 10% simple interest per year.
a. What is the interest earned after 8 years?
The interest earned is $? after 8 years.
b. What is the balance after 8 years?
The balance is $?
after 8 years.

Answers

Answer:

Step-by-step explanation:

The interest after 8 years is $240

The balance after 8 years is $540

Hope this helps!

Plz, Mark Brainliest!

The interest after 8 years is $240 and the balance after 8 years is $540.

What is Simple interest?

Simple interest is calculated by multiplying the daily interest rate by the principal, by the number of days that elapse between payments.

Given that, You deposit $300 in a savings account. The account earns 10% simple interest per year.

SI = P*R*T/10

Where P = principal

R = rate

T = time

a) The interest earned after 8 years:-

SI = 300*10*8/100 = $240

b) The balance after 8 years:-

Amount = 300+240 = $540

Hence, The interest after 8 years is $240 and the balance after 8 years is $540.

For more references on simple interest, click;

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40 is what % of a
Plz help

Answers

Answer:

Step-by-step explanation: To calculate the percentage, multiply this fraction by 100 and add a percent sign. 100 * numerator / denominator = percentage . In our example it's 100 * 2/5 = 100 * 0.4 = 40 .

1-tan theta/1+tan theta = cos theta - sin theta/cos theta + sin theta​

Answers

Answer:

The answer is given in the pic Hope it will help :)

Please find attached herewith the solution of your question.

Hope it helps

What is the value of the number? -(-6)?

Answers

The value is positive six

Answer:

6

Step-by-step explanation:

-(-6)=6

I am trying to find the measure of angle KRD angle KRD: 5r+42 angle: DRB: 4r+66 I don't really understand this

Answers

Based off what you have I can't solve it

Select the Equivalent Expression. 3 negative 5 =? I cant find the negative sign on here lol.




Answers

Answer:

Step-by-step explanation:

do you mean 3-5=-2 ?

Answer:

3+,-5 =-2

Step-by-step explanation: you mean this if you do your welcome

20% of what number is 479
168
0 235
O230
094

Answers

Answer:

168 hope  this is right

Step-by-step explanation:

Enter an equation in the form y = mx + b that represents the function

Answers

Answer: no answer c

Step-by-step explanation:

Sushil rolls a fair dice 138 times.
How many times would Sushil expect to roll an even number?

Answers

Answer:

69?

Step-by-step explanation:

69
(3/6 even numbers in a dice so 3/6*138=69)
hope this helped !

Please help!


Given A= [2 -7 6 1] and B= [-9 5 1 -1]
IT X-A=B, what is X?

Answers

Answer:

Option A, Or Option 1

Step-by-step explanation:

-7 -2

7  0

WILL MARK YOU BRAINLIEST ANSWER WHAT YOU CAN PLS

Answers

Answer:

1.

T mBAC = mB'A'C'

F 2mABC = mA'B'C'

F BC = 2B'C'

T 2XA = XA'

2

D'(-2/3; -1)

E'(-1;1)

F'(1;1)

G'(1;-1)

3

the centre is L(0;-2)

the scale factor is 4

length J'K' = 4JK

the measure of L is equal the measure of L'

the table:

K(4;2) 4 4 16 16 0+16 -2+16 K'(16;14)

TWENTY POINTS
PLEASE HELP ASAP DONT STEAL POINTS


Multiplying the radical by a number between 0 and 1 causes the graph of the parent function ( f(x)= √x ) to ___________.

Answers

Answer:

FOR YOU LOVE

Step-by-step explanation:

If a function is defined by a radical expression, we call it a radical function. The square root function is f(x)=√x f ( x ) = x . ... A radical function is a function that is defined by a radical expression.

THE PIC IN ABOVE IS EQUATION TRY TO ANSWER IT

PLEASS MARK ME AS BRAINLIEST LOVE YOU STAY SAFE

Find the circumference for the circle below. Round your answer to the nearest
tenth
radius = 17

Answers

The circumference of a circle is 2 πr

If the radius of a circle is 17, then it becomes 2 π17

Rounded to the nearest tenth, 2 π17 is 106.8

look at the picture please help.​

Answers

Answer:

Under 1: $3.25

Under 3: $9.75

Under 5: $16.25

Cost for 15 pounds = $48.75

Answer:

1 pound= $3.25

3 pounds=$9.75

5 pounds=$16.25

15 pounds =$48.75

Step-by-step explanation:

1x3.25=3.25

3x3.25=9.75

5x3.25=16.25

15x3.25=48.75

(3)
23
-1
2
0
d
2
e
4.
f
d =
e-
f=

Answers

Answer:

Step-by-step explanation:

this is the formula using a calculator hit 2nd then x^2 and the number you want then enter

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