Q: What is the solution?
Solve 0 = -197*t + 11989 - 19869 for t.

A: -40

Q: What is the solution?
Solve 3*f = -83 + 77 for f.

A: -2

Q: What is the solution?
Solve 2507*z = 3530*z + 64449 for z.

A:
-63