Question

Can someone help me with this ?

Answer 1

-27 minus 10 isn't -17....its -37 so since that mistake everything else is counted as a mistake
Hope this helps

Answer 2

8x-27-10-6x=15
8x+(-6x)= 2x
(-27)+(-10)=-37 (this is where they went wrong)
2x-37=15
add 37 to each side 
2x=52
divide by 2 
x= 26