Solve for a
a = -\frac{25}{2} = -12\frac{1}{2} = -12.5
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2a=-25
Subtract 25 from both sides. Anything subtracted from zero gives its negation.
a=\frac{-25}{2}
Divide both sides by 2.
a=-\frac{25}{2}
Fraction \frac{-25}{2} can be rewritten as -\frac{25}{2} by extracting the negative sign.
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