Question

найдите корень уравнения

Answer 1

-2х-122/9=-12
-2х-122/9 + 12/1=0
-2х-122/9+12/1=-2х-122+108/9=-2х-14/9=0
-2х-14=0
-2х=14
х=-14:2=-7
Ответ: -7

Answer 2

http://znanija.com/task/4121104 решите

Answer 3

$frac{-2x-122}{9} =-12 \ -2x-122=-12*9 \ -2x-122=-108 \ -2x=-108+122 \ -2x=14 \ x=14:(-2) \ x=-7$