Q: Solve:
Solve -31*z - 6 = -28*z for z.

A: -2

Q: Solve:
Solve 962 + 1435 = 323*v - 108 - 7185 for v.

A: 30

Q: Solve:
Solve 0 = 8287920*h - 8288115*h + 10920 for h.

A:
56