Question

Solve for x: 9x - 7 = 29

Answer 1

9x - 7 = 29

move -7 to the other side

sign changes from -7 to +7

9x-7+7= 29+7

9x= 29+7

9x= 36

divide by 9 for both sides

9x/9= 36/9

Answer: x= 4

Answer 2

9x - 7 = 29

Add 7 to both sides.

9x - 7 + 7 = 29 + 7

9x - 0 = 36

9x = 36

Divide both sides by 9.

9x/9 = 36/9

x = 4

Done.