Answer:
-8x+2
Step-by-step explanation:
First we'll group the like terms, making the problem -8x-5x+5x+7-5 which we can write as (-8x-5x+5x)+(7-5) to make it easier to read. Then we will solve, so since -5x+5x would just equal 0 we can remove them, giving us -8x+2.
