Question

A) 3X + 7 = X -3
B) 4X -5 = 2X + 4
C) X - 3 = 7X + 8
D) 2X = 0
E) 10X +4 =12X - 6
F)-X -8 = -3X​

Answer 1

A)

3x+7  = x -3

3x - x = -3 - 7

2x = -10

x= -10/2

x= -5

B)

4x-5 = 2x+ 4

4x - 2x = 4 + 5

2x = 9

x= 9 /2

x= 4,5

C)

x-3 = 7x + 8

- 3 - 8 = 7x -x

-11 = 6x

x= -11/6

D)

2x= 0

x= 0/2

x= 0

E)

10x+4 = 12x -6

4 + 6 = 12x -10x

10 = 2x

x= 10/2

x= 5

F)

-x - 8 = -3x

-x + 3x = 8

2x= 8

x= 8/2

x= 4