Question: What is the solution?

Solve -26*s + 21*s = 12*s - 204 for s.

Answer: 12

Question: What is the solution?

Solve -543*u + 3554 = -30933 - 8410 for u.

Answer: 79

Question: What is the solution?

Solve 239052*o - 239114*o + 1302 = 0 for o.

Answer: 21

Question: What is the solution?

Solve 92*b = 4*b - 528 for b.

Answer:
-6