Solve for n
n = \frac{17}{2} = 8\frac{1}{2} = 8.5
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-2n=4-21
Subtract 21 from both sides.
-2n=-17
Subtract 21 from 4 to get -17.
n=\frac{-17}{-2}
Divide both sides by -2.
n=\frac{17}{2}
Fraction \frac{-17}{-2} can be simplified to \frac{17}{2} by removing the negative sign from both the numerator and the denominator.
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