Q: Solve -20 = 9*w - 5*w for w.

A: -5
Q: Solve:
Solve -10*z - 120 = -50*z for z.

A: 3
Question: What is the solution?

Solve -116*b + 576 = 42*b + 3420 for b.

Answer: -18
Problem: Math Problem
Solve 79 = 7*z + 93 for z.

A: -2
Question:
Solve -324 = 6*b - 378 for b..

Answer:
9
Q: What is the solution?
Solve 0 = 3*r - 24 + 15 for r.

A:
3