Question:
Solve 6586*u - 6554*u = 768 for u..

Answer:
24

Question:
Solve 822*s - 651*s = 9747 for s..

Answer:
57

Question:
Solve -17*f + 8 = -15*f for f..

Answer:
4

Question:
Solve 18*u - 24*u + 18 = 0 for u..

Answer:
3