Evaluate
-6-9i
Real Part
-6
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6-12+\left(-12+3\right)i
Combine the real and imaginary parts in numbers 6-12i and -12+3i.
-6-9i
Add 6 to -12. Add -12 to 3.
Re(6-12+\left(-12+3\right)i)
Combine the real and imaginary parts in numbers 6-12i and -12+3i.
Re(-6-9i)
Add 6 to -12. Add -12 to 3.
-6
The real part of -6-9i is -6.
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