Solve Equations with One Variable

Please solve this equation

23 = x + 7

• x = 16

• x = 30

• x = 161

• None of these match my answer

Please solve this equation

1.2x = 9.6

• x = 8

• x = 10.8

• x = 8.4

• None of these match my answer

Select all equations that match this tape diagram.

Mathematical Equivalence

ON

Solve the equation:
-5x = 25

• x = 20

• x = -20

• x = -5

• x = 5

3(x - 2) = 18

• 6.7

• 4

• 8

• -4

• none of the above

Mathematical Equivalence

ON

Kylie and Ricardo decide to start a dog watching business for their neighborhood. Kylie thinks it would be best to charge customers $27 for a membership and then $5 per time they walk a dog. Ricardo thinks it would be best to charge $8 per dog walk. For what number of walks will their two plans cost the same amount of money?

Mathematical Equivalence

ON

Mathematical Equivalence

ON

What is the result of solving for the variable?

• x = -12

• x = 3

• x = -3

• x = 12