Question

How do you simplify `(10-2i)+(-11-7i)`?

Answer 1

`-1-9i`

Explanation:

`"simplify by collecting like terms"`

`=10-2i-11-7i`

`=(10-11)+(-2i-7i)`

`=-1-9i`

Answer 2

`-1-9i`

Explanation:

For the most part, even though it isn't, we can treat the imaginary unit like it is a variable. We have

`10-2i-11-7i`

We combine the constants and the imaginary terms respectively to get

`-1-9i`

Hope this helps!