CPM Homework Banner
7-39.
  1. Solve each of the following equations. Homework Help ✎

    1. 2x + 8 = 3x − 4

    2. 1.5(w + 2) = 3 + 2w

    3. 8(x + 6) + 23 = 7

    4. 3(2x − 7) = 5x + 17 + x

Note: Some steps may be done differently.
Be sure to check you answers by substituting them into the original equations.

Subtract 2x from both sides.

8 = x − 4

Add 4 to both sides.

12 = x

Verify that 2(12) + 8 = 3(12) − 4

Use the Distributive Property.

1.5w + 3 = 3 + 2w

Subtract 1.5x from both sides.

Subtract 3 from both sides.

Divide both sides by 0.5.

w = 0

Be sure to check your answer.

Now try parts (c) and (d) on your own.