# How do you simplify -12+(-9-6i)+(1-4i)?

Oct 17, 2016

The simplified expression is $- 20 - 10 i$.

#### Explanation:

When combining complex numbers, you combine the like parts.

$- 12 + \left(- 9 - 6 i\right) + \left(1 - 4 i\right)$
$\left(- 12 - 9 + 1\right) + \left(- 6 i - 4 i\right)$
$- 20 - 10 i$