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Home > CC3 > Chapter 7 > Lesson 7.2.4 > Problem 7-74

7-74.
  1. Solve each of the following equations. Homework Help ✎

    1. 0.15(w + 2) = 0.3 + 0.2w

    2. 3(2x − 7) = 5x + 17 + x

Multiply through the equation to get rid of the fractions.
Use a common denominator of 24:
4x + 16 = 6x − 8

Combine like terms and solve for x.

x = 12

Multiply (w + 2) by 0.15 and combine like terms.
Multiplying by 100 could also be useful to eliminate the decimals.

w = 0

Refer to (a) for help.
Find a common denominator and solve for x.

Refer to (b) for help.