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Home > CC3 > Chapter 8 > Lesson 8.2.2 > Problem 8-70

8-70.
  1. Solve the equations below for the indicated variable. Homework Help ✎

    1. 3(2x − 1) + 2y = 5x for y

    2. 600x + 200y = 500x for x

3(2x) − 3(1) + 2y = 5x Distribute.
6x − 3 + 2y = 5x

-6x -6x Subtract 6x from both sides.
−3 + 2− = −x

+3 +3 Add 3 to both sides
2y = -x + 3

Divide both sides by 2.

Follow the same method as in part (a).