Question: What is the solution?

Solve -15*x = 22 + 100 + 73 for x.

Answer: -13

Question: What is the solution?

Solve 182470812*d - 182470860*d = -6960 for d.

Answer: 145

Question: What is the solution?

Solve 0 = -29*s + 20*s - 9 for s.

Answer: -1

Question: What is the solution?

Solve 3*v + 5 = 20 for v.

Answer:
5