Q: What is the solution?
Solve 8*z - 11*z = 12 for z.

A: -4

Q: What is the solution?
Solve 19*x + 13*x - 528 + 981 = -987 for x.

A: -45

Q: What is the solution?
Solve 2*l = -2519 + 2523 for l.

A:
2