Solve for a
a=22
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\frac{18}{2}a=198
Multiply \frac{1}{2} and 18 to get \frac{18}{2}.
9a=198
Divide 18 by 2 to get 9.
a=\frac{198}{9}
Divide both sides by 9.
a=22
Divide 198 by 9 to get 22.
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