Q: What is the solution?
Solve 84 = 76*o - 90*o for o.

A: -6

Q: What is the solution?
Solve 66421 = -3839*m - 88307 - 90968 for m.

A: -64

Q: What is the solution?
Solve 2085 - 1905 = 30*j for j.

A:
6