Question: What is the solution?

Solve 23*m - 30 = 85 for m.

Answer: 5

Question: What is the solution?

Solve -73 = -30*y + 137 for y.

Answer: 7

Question: What is the solution?

Solve 25*q = -4863 + 5163 for q.

Answer: 12

Question: What is the solution?

Solve -71*r + 1560 = -32*r + 59*r + 22*r for r.

Answer:
13