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Home > CC3 > Chapter 9 > Lesson 9.2.1 > Problem 9-61

9-61.
  1. Solve these equations for x. Check your answers. Homework Help ✎

    1. 2(x + 4.5) = 32

    2. 6 + 2.5x = 21

Distribute.
2(x) + 2(4.5) = 32

Subtract 9 from both sides.

2x + 9 = 32
−9 −9
2x = 23

Divide by 2.

x = 11.5

Isolate the variable.

See (a).

You could cross multiply.
16x = 5(9)