Solve for a
a=\frac{181}{2}-\frac{7}{2}i=90.5-3.5i
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2a=181-7i
Subtract 7i from both sides.
a=\frac{181-7i}{2}
Divide both sides by 2.
a=\frac{181}{2}-\frac{7}{2}i
Divide 181-7i by 2 to get \frac{181}{2}-\frac{7}{2}i.
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