Question: What is the solution?

Solve -19*v + 20*v = 2 for v.

Answer: 2

Question: What is the solution?

Solve -59*o + 379 = -34 for o.

Answer: 7

Question: What is the solution?

Solve -2903*l = -2900*l - 9 for l.

Answer: 3

Question: What is the solution?

Solve 1287 = -120*c + 21*c for c.

Answer:
-13