CPM Homework Help : AC Problem 7-51

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Home > AC > Chapter 7 > Lesson 7.1.5 > Problem 7-51

7-51.

Solve the equations below for the indicated variable.

$6x-3y=12$ for $y$
Hint (a):
Solve for the variable by isolating it on one side.
$-3y=12-6x$
Now divide both sides by $-3$ .

$y=-2x+4$ for $x$
Hint (b):
Follow the steps outlined in part (a).

$4-2\left(3x+2\right)=4x-10$ for $x$
Hint (c):
First distribute to remove the parenthesis, then combine like terms. To finish, follow steps in part (a).
Answer (c):
$x = 1$

$\frac{3-x}{4}=\frac{5}{2}$ for $x$
Hint (d):
Multiply by a common denominator to remove the fractions. Then follow the steps in part (a).

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