Q: Solve -21*r + 112*r = -819 for r.

A: -9
Q: Solve:
Solve -479 - 65 = -136*o for o.

A: 4
Question: What is the solution?

Solve 46*a - 12 = -39 - 19 for a.

Answer: -1
Problem: Math Problem
Solve -108*f + 139*f + 248 = 0 for f.

A: -8
Question:
Solve 1026*t - 508*t - 104412 = 2038*t + 2209*t for t..

Answer:
-28
Question:
Solve 0 = -417*s + 753*s for s..

Answer:
0