Q: Solve:
Solve 12*s - 4545 + 4455 = 2*s for s.

A: 9

Q: Solve:
Solve 28*h - 58*h = -75*h + 2205 for h.

A: 49

Q: Solve:
Solve -1787*z - 243712 = 1872*z + 693*z for z.

A:
-56