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Home > CC3 > Chapter 10 > Lesson 10.1.1 > Problem 10-17

10-17.
  1. Solve the following equations for the given variable. Homework Help ✎

    1. 3x + (−4) = 2y + 9 for y

    2. 12 = x for x

    3. for x

    4. for y

3x + (−4) = 2y + 9
−9 −9

1.5x − 6.5 = y

Isolate the variable.

You can use cross multiplication to solve this equation.

38 (18) = 6 (x)

See part (c).