Evaluate
11-13i
Real Part
11
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7+4+\left(-8-5\right)i
Combine the real and imaginary parts in numbers 7-8i and 4-5i.
11-13i
Add 7 to 4. Add -8 to -5.
Re(7+4+\left(-8-5\right)i)
Combine the real and imaginary parts in numbers 7-8i and 4-5i.
Re(11-13i)
Add 7 to 4. Add -8 to -5.
11
The real part of 11-13i is 11.
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