I could only read the first page but the answers are:
1. x = -22.5
2. x = -12.5
3. x = -8
4. -4 and 2/3 = y
5. 3x-15 = 3x+17
6. Any real number is a solution
I could be wrong, but I took some time and I think they're mostly correct if not all. Good luck, hope this helps!
