robertsonrebecca1314 robertsonrebecca1314
  • 02-05-2019
  • Mathematics
contestada

6/(x+7)=7/(x-2) solve for x

Respuesta :

Cxlver
Cxlver Cxlver
  • 02-05-2019

Answer:

x = -61

Step-by-step explanation:

[tex]\frac{6}{x+7}=\frac{7}{x-2}[/tex]

First we state that the solution cannot contain: {-7, 2}, because we would end up with a 0 in the denominator.

Then we can cross multiply:

6(x - 2)=7(x+7)

6x - 12 = 7x + 49

7x + 49 = 6x - 12

x + 61 = 0

x = -61

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