Question

х + 3 = 2х + 5
2х - 1 = - 3
6 - 2х = х

Answer 1

1) -х = 2
х = 2: -1
х = -2
2) 2х = -2
х = -1
-3х = -6
х = 2

Answer 2

1)x+3=2x+5
x-2x=5-3
-x=2
x=-2
2)2x-1=-3
2x=-3+1
2x=-2
x=-1
3)6-2x=x
3x=6
x=6:3
x=2