Question: What is the solution?

Solve 7*b + 72 = -11*b for b.

Answer: -4

Question: What is the solution?

Solve -657*b = 28502 + 3691 for b.

Answer: -49

Question: What is the solution?

Solve 287 = -11*z + 320 for z.

Answer: 3

Question: What is the solution?

Solve -29310*s - 3200 = -29278*s for s.

Answer:
-100