Q: What is the solution?
Solve 0 = -321*r + 343*r + 88 for r.

A: -4

Q: What is the solution?
Solve -303*s - 69 = 9627 for s.

A: -32

Q: What is the solution?
Solve 0 = -152*s + 16542 - 20494 for s.

A:
-26