12.5 8th grade

Solve for x : 3 + x = 21

• x = 18

• x = 24

• x = 7

• x = 63

• t = 3

• t = -40

• t = -3

• t = 40

-6x = 30

• x = - 5

• x = 24

• x = 5

• x = 36

• 33

• 14

• -33

• -14

• y = -35

• y = 2

• y = -12

• y = 5/7