Q: Solve -124*a - 520 = 62*a + 1340 for a.

A: -10
Q: Solve:
Solve 21*b + 40 = -65 for b.

A: -5
Question: What is the solution?

Solve -26*l + 14*l + 9*l = 0 for l.

Answer: 0
Problem: Math Problem
Solve 17*m - 75*m + 644 = 180 for m.

A: 8
Question:
Solve -6615 = 153*m - 19620 for m..

Answer:
85
Question: What is the solution?

Solve 0 = r - 9*r - 8 for r.

Answer:
-1