# How do you evaluate (5- 6i ) + ( 4- i )?

Sep 15, 2017

$9 - 7 i$

#### Explanation:

For this specific example, you can visually remove the parentheses and simplify. Combine the numbers without i, and then combine the numbers with i.

$\left(5 - 6 i\right) + \left(4 - i\right)$

$5 - 6 i + 4 - i$

$9 - 7 i$