One Step Equations Addition and Multiplication

Solve for x in the following equation:

20.5 = x + 4

• 16.5

• 16.05

• 24.5

• 24.05

In the equation x + 7 = 12 7 is being added to the variable, x. How should you show your work to isolate the variable and solve the equation?

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

• Add 7 to both sides.

  The solution is x = 19.

• Multiply both sides by 7 The solution is x = 84.

SOLVE 10=z+6

8y = 48

Solve - 2x = 22

• -11

• 11

• -12

• 12

Solve the equation.

x + 9 = -5

Mathematical Equivalence

OFF

4x + 7 = 23

3c + 5 = 23

x+5 = 15

• 20

• 10

• 3

• 25

q - 12 = 1