Solve for a
a=-\frac{1}{3}\approx -0.333333333
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-3a=8-7
Subtract 7 from both sides.
-3a=1
Subtract 7 from 8 to get 1.
a=\frac{1}{-3}
Divide both sides by -3.
a=-\frac{1}{3}
Fraction \frac{1}{-3} can be rewritten as -\frac{1}{3} by extracting the negative sign.
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