Question:
Solve 0 = -2233*p + 2198*p - 525 for p..

Answer:
-15

Question:
Solve -45*y + 1062 = -48*y + 62*y for y..

Answer:
18

Question:
Solve -1330*u = -1283*u - 423 for u..

Answer:
9

Question:
Solve 9*l - 20 = 151 for l..

Answer:
19