Q: What is the solution?
Solve -15*x + 31 + 85 - 41 = 0 for x.

A: 5

Q: What is the solution?
Solve 168 - 63 = -15*l for l.

A: -7

Q: What is the solution?
Solve 6*t - 21*t = -8*t for t.

A:
0