Question: What is the solution?

Solve -52 = 9*v - 88 for v.

Answer: 4

Question: What is the solution?

Solve 22*v - 90 = -8*v for v.

Answer: 3

Question: What is the solution?

Solve -434*o = -419*o + 135 for o.

Answer: -9

Question: What is the solution?

Solve -15*d + 1732 = 1867 for d.

Answer:
-9