Solving Equations

Front

12x = 144

Back

x = 12

Front

3y = -15

Back

-5

Front

-4x + 1 = 21

Back

x=-5

Front

5 = 7s - 9

Back

2

Front

-30 - 5x = 120

Back

x = -30

Front

m - 7 + 5m = 11

Back

m = 3

Front

-10(2m + 1) = - 50

Back

m = 2

Front

15f + 12 - 9 - 11f = 43

Back

f = 10

Front

How to isolate x in the equation x + 7 = 12?

Back

Subtract 7 from both sides. The solution is x = 5.

Front

¾ x + 7 = 22

Back

x = 20