Q: Solve 144*z - 129*z - 45 = 0 for z.

A: 3

Q: Solve -2999329 + 999949 = 14180*h for h.

A: -141

Q: Solve -153*o - 1361*o + 249240 = 1127*o - 631*o for o.

A: 124

Q: Solve 31*p - 13 = 67*p - 37*p for p.

A:
13