Question: What is the solution?

Solve 80 - 183 = 16*x + 153 for x.

Answer: -16

Question: What is the solution?

Solve -17*i + 139*i = -351*i + 36*i + 3059 for i.

Answer: 7

Question: What is the solution?

Solve -70*h + 101*h + 152*h - 1281 = 0 for h.

Answer: 7

Question: What is the solution?

Solve 296*z = 242*z - 594 for z.

Answer:
-11