# How do you simplify (5 – 3i) + (4 – 8i)?

Mar 5, 2018

$9 - 11 i$

#### Explanation:

Addition in complex numbers is defined by

(a+bi)+(a´+b´i)= (a+a´)+(b+b´)i

Thus in our case:

$5 + 4 + \left(- 3\right) i + \left(- 8\right) i = 9 - 11 i$