Solve for x
x = \frac{45}{2} = 22\frac{1}{2} = 22.5
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12x=270
Combine 5x and 7x to get 12x.
x=\frac{270}{12}
Divide both sides by 12.
x=\frac{45}{2}
Reduce the fraction \frac{270}{12} to lowest terms by extracting and canceling out 6.
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