Question

(75 - 7i) + (475 +7i)​

Answer 1

550

Explanation:

So here we will just collect like terms;

75 - 7i + 475 + 7i

The 7i cancel out themselves so we are left with 75 + 475 = 550

Answer 2

I simplified this equation and received.
Answer: 550
Elaborate what you want to solve of this is not what was wanted.