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3-31.
  1. Solve each equation below for x. For parts (c) and (d), use the ideas from problem 3-30 so that you do not have to use Guess and Check. Homework Help ✎

    1. 2(x+3) = 22x

    2. 3(2x+1) = 33

    3. 9x = 340

    4. 870 = 2x

Recall problem 3-7.

x = 3

See part (a).

9 = 32

See part (c), or problem 3-30 for guidance.