spidermom spidermom

25-04-2017
Mathematics

contestada

solve x+12/x+4=×/x+8

Respuesta :

lamochick lamochick

25-04-2017

Cross multiply...
Thus,
x(x+4)=(x+12)(x+8)
expand...
x^2+4x=x^2+8x+12x+96
Simply both sides of the equation.
x^2+4x=x^2+20x+96
simply further by adding ask like terms...
-16x=96
Solve for x by making x the subject.
therefore
x=-6.

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