Question: What is the solution?

Solve -41*z = 43 - 84 for z.

Answer: 1

Question: What is the solution?

Solve 63*z = 67*z + 4 for z.

Answer: -1

Question: What is the solution?

Solve 615300 + 87701 + 143329 = 17401*h + 63285 for h.

Answer: 45

Question: What is the solution?

Solve -3*o = -4 - 8 for o.

Answer:
4