Question: What is the solution?

Solve -265*d = 110*d + 5250 for d.

Answer: -14

Question: What is the solution?

Solve -31*d = -1727 + 1510 for d.

Answer: 7

Question: What is the solution?

Solve -14*b - 15 = -11*b for b.

Answer: -5

Question: What is the solution?

Solve -221*b - 1082 + 5009 = 10*b for b.

Answer:
17