Question

Решите уравнения 1) 5x-2=2x+y 2) 3x-2=6+4x 3) 6x+6=4x-2 4) -2x-4=2x+8

Answer 1

1)5х-2=2х+у      2)3х-2=6+4х     3)6х+6=4х-2        4)-2х-4=2х+8
   5х-2х=2+у         3х-4х=6+2         6х-4х=-2-6          -2х-2х=8-4
   3х=2+у               -х=8                  2х=-8                    -4х=4
   х=0,67+0,3У       х=-8                 х=-4                         х=-1