Evaluate
12+35i
Real Part
12
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30-18+\left(-1+6+30\right)i
Combine the real and imaginary parts.
12+35i
Do the additions.
Re(30-18+\left(-1+6+30\right)i)
Combine the real and imaginary parts in 30-i-18+6i+30i.
Re(12+35i)
Do the additions in 30-18+\left(-1+6+30\right)i.
12
The real part of 12+35i is 12.
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