Question: What is the solution?

Solve 0 = -4*z + 58 - 34 for z.

Answer: 6

Question: What is the solution?

Solve 163*x - 77*x + 8148 = -108*x for x.

Answer: -42

Question: What is the solution?

Solve -81*b - 576 + 1652 + 706 = 0 for b.

Answer: 22

Question: What is the solution?

Solve -644*y - 9433 = -1705 for y.

Answer:
-12