SOLUTION: solve 2x/x+7=5/x+1

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Question 470328: solve
2x/x+7=5/x+1
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

2x%2F%28x%2B7%29=5%2F%28x%2B1%29  |Cross Multiplying to solve

   2x(x+1) = 5(x+7)

   2x^2 -3x -35 = 0

factoring

 (2x +7)(x-5) = 0

 (2x +7)= 0   x = -7/2

 (x-5) = 0    x = 5



CHECKING our Answer***

x = 5      10/12 = 5/6

x = -7/2   -7/(7/2) = 5/(-5/2) = -2