5x - 2 = 2x + 7 3x - 2= 6 + 4x 6x + 6 = 4x - 2 -2x - 4 = 2x + 8

Question

5x - 2 = 2x + 7
3x - 2= 6 + 4x
6x + 6 = 4x - 2
-2x - 4 = 2x + 8

Answer 1

1) 5x - 2 = 2x + 7
    5х -2х=7+2
    3х=9
    х=3
2)3x - 2= 6 + 4x
   3х-4х=6+2
    -х=8
     х=-8
3)6x + 6 = 4x - 2
   6х-4х=-2-6
   2х=-8
   х=-4
4)-2x - 4 = 2x + 8
   -2х-2х=8+4
   -4х=12
   х=-3

Comments

Ух, спасибо большое

Answer 2

5х-2х=7+2
3х=9
х=3

3х-4х=6+2
-х=8
х=-8

-2х-2х=8
-4х=12
х=-3

Comments

спасибо