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7-51.
  1. Solve the equations below for the indicated variable. Homework Help ✎

    1. 6x − 3y = 12 for y

    2. y = −2x + 4 for x

    3. 4 − 2(3x + 2) = 4x − 10 for x

    4. 3-x/4 = 5/2 for x

Solve for the variable by isolating it on one side.

−3y = 12 − 6x

Now divide both sides by −3.

Follow the steps outlined in part (a).

First distribute to remove the parenthesis, then combine like terms. To finish, follow steps in part (a).

x = 1

Multiply by a common denominator to remove the fractions. Then follow the steps in part (a).