Answer: -5x - 3y + 1
Explanation:
When you get a question that asks you to combine like terms, arrange the x terms together, the y terms together, and the numbers together. Be sure to keep the + and - signs in front of each term.
-10x + 5x + 3y - 6y - 7 + 8
Once the like terms are together, you can add and subtract.
-10x + 5x = -5x
+3y - 6y = - 3y
-7 + 8 = +1
Put all the terms together to form the simplified expression.
-5x - 3y + 1