1. 4y/4 + 2x for y = 6, x = 2?
2. 8x /(x - 1) + 4 for x = 3?
3. 3(x - y) - 5 for x = 7, y = 4?
4. (x - 5)5 for x = 9?
5. 6y/5 for y = 30?
6. 10 + 2(3x - 2) for x = 4?
7. 12/y - 2 for y = 3?
8. 11 + x(12 - 2x) for x = 2?
9. xy + 2x -10 for x = 3, y = 2?
10. 3x(x - 5) for x = 10?
11. 75 - 7x + 5 for x = 2?
