Q: Solve 5*c - 4 = 4*c for c.

A: 4
Q: Solve:
Solve -16*r + 77*r - 660 = -159*r for r.

A: 3
Question: What is the solution?

Solve -75*y - 441 = -12*y for y.

Answer: -7
Problem: Math Problem
Solve -12*u + 47 - 41 + 70 - 232 = 0 for u.

A: -13
Question:
Solve -215 = -185*z + 672 - 4217 for z..

Answer:
-18
Question: What is the solution?

Solve 123*o + 21 = 120*o for o.

Answer:
-7