SOLUTION: solve n check. 3/1-x = 4/1+x

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Question 670590: solve n check. 3/1-x = 4/1+x
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

3%2F%281-x%29+=+4%2F%281%2Bx%29   ||| Cross Multiply to solve for x

 3(1+x) = 4(1-x) 

 3 + 3x = 4 - 4x

  7x = 1

   x = 1/7