Question

Simplify fifteen a minus nine minus nine a plus eleven plus three b.

six a plus three b plus two

negative three a plus fourteen b

eleven a b

three b plus eight

Answer 1

\[15a-9-9a+11+3b\] right?

Answer 2

yes

Answer 3

lets combine like terms...
15a - 9a = 6a
3b , has no other like terms
-9 + 11 = 2
put them together and you get : 6a + 3b + 2
any questions ?

Answer 4

^^Yes, combining like terms will help us.

So, what are some of the like terms you see here?