Q: What is the solution?
Solve 35 - 14 = -7*f for f.

A: -3

Q: What is the solution?
Solve 0 = -1728*u - 1725*u + 3435*u - 90 for u.

A: -5

Q: What is the solution?
Solve 26*h = -136*h - 152*h + 1570 for h.

A:
5