In with my math homework : ) first and correct gets brain. lyest.

1) not equal
2) equal

See each side
-6/3=-2
other side
3/-6=-1/2
-2=-1/2
false, not equal

-8*9=-72
9*-8=-72
-72=-72
equal

Your pictures are upside down

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!