CPM Homework Help : AC Problem 8-20

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Home > AC > Chapter 8 > Lesson 8.1.2 > Problem 8-20

8-20.

Solve each equation below for the given variable, if possible.

$\frac{4x}{5}=\frac{x-2}{7}$
Hint (a):
Multiply both sides by $35$ to cancel out the denominators.
Reminder (a):
Check your answer in the original equation.

$-3\left(2b-7\right)=-3b+21-3b$
Hint (b):
Distribute the left side.
Reminder (b):
Check your answer in the original equation.

$6-2\left(c-3\right)=12$
Hint (c):
See the hints in parts (a) and (b).

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