Q: Solve:
Solve 374*z + 488*z = -546*z - 1408 for z.

A: -1

Q: Solve:
Solve -21*o = -94*o - 205*o - 65*o + 15778 for o.

A: 46

Q: Solve:
Solve -5 - 76 = 32*q + 49*q for q.

A:
-1