4x -2 = -5x +7 2x -1 + 6x = 7x +4 8x +3 = 5x -2 -2x 12+ 4x = 3...

A)4x-2=-5x +7

4x + 5x= 7 +2

9x =9

x=9/9

x =1

B) 2x -1 +6x=7x +4

2x +6x -7 =4+1

8x -7x =5

x=5

C)8x +3=5x -2 -2x

8x -3x =-2 -3

5x=-5

x=-5/5

x= -1

D)12 +4x =3+7x-9

4x -7x=3-9-12

-3x=-18

-3x.(-1)=-18.(-1)

x=18/3

x=6