Q: Solve 58 - 31 = 3*f + 36 for f.

A: -3

Q: Solve -1090*o = -1087*o - 15 for o.

A: 5

Q: Solve 136*u = -129 + 537 for u.

A: 3

Q: Solve 286*x - 5755 + 6918 = 1947*x - 30396 for x.

A:
19