Question

How do you simplify `(9a + 3b - 5) + ( 4b - 6)`?

Answer 1

`9a+7b-11`

Explanation:

Since both parenthesis have either nothing or a plus in front of them, we can just remove them:
`9a+3b-5+4b-6`

Now we can collect like terms to get:
`9a+(3+4)b-5-6=`

`=9a+7b-11`