Okay I understand that your ment to combine like terms but can someone help me understand this question better. Please.

Question

9y-11-5y=25

Answer 1

9y-11-5y=25

Like terms are
those with y
those with only numbers

9y - 5y = 4y

Add 11 to both sides.

4y = 36

http://www.mathsisfun.com/algebra/like-terms.html

Answer 2

Thanks

Answer 3

You're welcome.