Question

Could someone explain how to solve these?

Answer 1

Yes

Explanation:

I will do question 4 so you understand: What there asking is for you to simplify.

This is how you do so.

step 1 find the numbers that have the same letter

Step 2 If you find one for example 7y and 3y you add them which is 10y

Step 3: Any letters that are by them selves and the question doesn't give you a value ignore!

Hope this helps!!