Question

combine like terms to simplify 2xy-xy-y+7y-xy

Answer 1

The Answer Is 3 When You Combine Like Terms

Answer 2

2xy - xy - y + 7y - xy
All the "xy" terms can combine.
2xy - xy - xy
(Imagine there is a 1 in front of the variables— 2-1-1=0)
Now you're left with the -y + 7y.
Your answer after combining like terms is 6y.