Question: What is the solution?

Solve 49 - 45 = -4*h for h.

Answer: -1

Question: What is the solution?

Solve -29*y + 60*y = -9*y for y.

Answer: 0

Question: What is the solution?

Solve 8*v = 77 - 40 - 21 for v.

Answer: 2

Question: What is the solution?

Solve 67*x - 89 = -41*x + 19 for x.

Answer:
1