Answer:
2
Step-by-step explanation:
-2y + 10 + 2y - 8 =
10 - 8 =
2
first you have to simplify the problems in the correct order and because the numbers with the y value can only simplify into each other and not the other numbers without the y variable you have to simplify by themselves once you do that the answer equates to 0 for the y value which would cancel the y value now you would simplify the two numbers with out the y values canceling them out would lead to the answer of 2.
