Solve for x
x = \frac{14}{3} = 4\frac{2}{3} \approx 4.666666667
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12x-3x=42
Subtract 3x from both sides.
9x=42
Combine 12x and -3x to get 9x.
x=\frac{42}{9}
Divide both sides by 9.
x=\frac{14}{3}
Reduce the fraction \frac{42}{9} to lowest terms by extracting and canceling out 3.
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