How would I solve a problem like the one below?
Subtract 6h from each side.
Now add 9 to each side.
-h - 9 + 9 = -16 + 9
-h = -7, or h = 7
I see you are leaving the 9. If you are subtracting 6h from 5h would that give you -1? Do you just ignore the -1?