Evaluate
-7+15i
Real Part
-7
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12i-\left(7-3i\right)
Add 6i and 6i to get 12i.
7+\left(12-\left(-3\right)\right)i
Subtract 7-3i from 12i by subtracting corresponding real and imaginary parts.
-7+15i
Subtract -3 from 12.
Re(12i-\left(7-3i\right))
Add 6i and 6i to get 12i.
Re(7+\left(12-\left(-3\right)\right)i)
Subtract 7-3i from 12i by subtracting corresponding real and imaginary parts.
Re(-7+15i)
Subtract -3 from 12.
-7
The real part of -7+15i is -7.
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