Question

If 3x = 21 find the value of x-8

PLEASE HELPPPP

Answer 1

-1

Explanation:

3x = 21

Divide both sides by the co efficient of x

3x = 21

3 3

x = 21/3

x = 7

Find x - 8

x = 7

7 - 8

= -1

Answer 2

x − 8 = − 10

Explanation: 9x −13 = − 31 Add 13 to each side.