# How do you find -i+(7-5i)-3(2-3i)?

Aug 3, 2016

$1 + 3 i$

#### Explanation:

$- i + \left(7 - 5 i\right) - 3 \left(2 - 3 i\right)$

Expand:
$\to - i + 7 - 5 i - 6 + 9 i$

Sum real and imaginary parts:
$\to 7 - 6 + 9 i - 5 i - i$

$= 1 + 3 i$