How to solve - 3 + 6i - (-5 - 3i) - 8

-3 + 6i - (-5 - 3i) - 8

First, simplify brackets. / Your problem should look like: - 3 + 6i + 5 + 3i - 8

Second, gather like terms. / Your problem should look like: (-3 + 5 - 8) + (6i + 3i)

Third, simplify. / Your problem should look like: - 6 + 9i

Answer: - 6 + 9i