Q: Solve:
Solve 158*c + 20 = 163*c for c.

A: 4

Q: Solve:
Solve -662*h + 2894 = 122*h + 41310 for h.

A: -49

Q: Solve:
Solve -7*c - 3*c - 40 = 0 for c.

A:
-4