One Step and Two Equations

x + 12 = 20

• x = 32

• x = -32

• x = 8

• x = -8

Solve the equation:
-3 + x = -12

• x = 9 

• x = -15

• x = -9

• x = 15

-4 = 2t - 2 

• -1

• 1

• 4

• 0

Solve the equation:
-5x = 25

• x = 20

• x = -20

• x = -5

• x = 5

How would you solve each equation?

• add 4 to both sides of =

• x+4=12

• divide both sides of = by 4

• 4x=12

• multiply both sides of = by 4

• x-4=12

• subtract 4 from both sides of =

Mathematical Equivalence

ON

Solve the equation:
-5x = 45

• x = 225

• x = -225

• x = -9

• x = 9

x - 11 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 11 to each side. 

• Subtract 11 from each side.

• Multiply each side by 11.

• Divide each side by 11.

Solve for q:
4q + 2 = 18

• q = 4

• q = 16

• q = 14

• q = 2

Solve for b:
b - 13 = 3

• b = 16

• b = 10

• b = -10

• b = 3