Solve for x
x = \frac{21}{2} = 10\frac{1}{2} = 10.5
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5x-21x=-168
Subtract 21x from both sides.
-16x=-168
Combine 5x and -21x to get -16x.
x=\frac{-168}{-16}
Divide both sides by -16.
x=\frac{21}{2}
Reduce the fraction \frac{-168}{-16} to lowest terms by extracting and canceling out -8.
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