dummy0257 dummy0257
  • 24-11-2018
  • Mathematics
contestada

x÷x+4=3÷x-1
[tex] \frac{x}{x + 4} = \frac{3}{x - 1} [/tex]

Respuesta :

nap14hockey
nap14hockey nap14hockey
  • 24-11-2018

[tex]\frac{x}{x + 4}=\frac{3}{x - 1} \\3(x+4) = x(x-1)\\3x+12 =x^2-x\\0=x^2-4x-12\\0=(x-6)(x+2)\\X= 6, -2[/tex]


Steps:

First we cross multiply

Then Distribute,

Then move all terms to one side

Factor

Set each factor equal to zero

Answer Link

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