Question

4 over 1-x= 7 over 1+x

Answer 1

4/(1-x) = 7/(1+x)

Correct?

Answer 2

4(1+x)=7(1-x) ?

Answer 3

What are you trying to prove here?

Answer 4

Are you trying to solve for x??

Answer 5

im trying to find the solution
yes im trying to find x

Answer 6

Ok are you working from a textbook? If you are what is the answer??

Answer 7

no its a homework problem. i know i'm supose to cross mutiply which is would be
4(1+x)=7(1-x) but i'm not sure what to do after that

Answer 8

Ok so after that we can distribute the 4 and the 7 into the binomial. So do that and show me your answer

Answer 9

i dont know what ya mean. am i suppose to do this 4+4x=7-7x

Answer 10

Yes :) Now collect like terms :)

Answer 11

So what did you get?

Answer 12

-3/11?

Answer 13

or 11/3

Answer 14

-3/11 is correct :)

Answer 15

Congratulations :) Did I help in anyway??

Answer 16

yes thankyou

Answer 17

Yay :)

Answer 18

double check that... i think it should be positive 3/11

Answer 19

Nope I checked :P

Answer 20

@dpaInc I want to know your reason

Answer 21

I know why @Shauna8 cross multiplied wrong

Answer 22

@Shauna8 Your cross multiplication should say
\[7(1+x) = 4(1-x)\]
Not
\[4(1+x) = 7(1-x)\]
My mistake :P

Answer 23

\(\large 4+4x=7-7x \)
\(\large 4+4x\color {red}{-4+7x}=7-7x\color {red}{-4+7x} \) add 7x and subtract 4 to both sides
\(\large 11x=3 \) solve from here...

Answer 24

so its 3/11

Answer 25

No it's -3/11