Question

Combine the like terms.

12z+ 15z+ 8z+ 25z+ 19z+ 11z=

Answer 1

suppose you had
12 apples + 15 apples + 8 apples + 25 apples + 19 apples + 11 apples

How many apples would you have?
What did you do?

Now instead of apples you have those little z's
How many z's do you have