Solve for a
a=-3e^{2}+4\approx -18.167168297
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-a=3e^{2}-4
Subtract 4 from both sides.
\frac{-a}{-1}=\frac{3e^{2}-4}{-1}
Divide both sides by -1.
a=\frac{3e^{2}-4}{-1}
Dividing by -1 undoes the multiplication by -1.
a=-3e^{2}+4
Divide 3e^{2}-4 by -1.
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