Question: What is the solution?

Solve -4*o - 31 + 63 = 0 for o.

Answer: 8

Question: What is the solution?

Solve -14*l - 11 - 45 = 0 for l.

Answer: -4

Question: What is the solution?

Solve 12*w + 10231 = 10147 for w.

Answer: -7

Question: What is the solution?

Solve -25*d - 60 = -13*d for d.

Answer:
-5