Q: What is the solution?
Solve -18 = -80*y + 74*y for y.

A: 3

Q: What is the solution?
Solve 2*c - 23*c - 144*c + 4955 = -6100 for c.

A: 67

Q: What is the solution?
Solve -247 + 707 = -172*z - 1260 for z.

A:
-10