Question: What is the solution?

Solve -12*y = -23*y + 55 for y.

Answer: 5

Question: What is the solution?

Solve 2*z = 9*z + 30 + 61 for z.

Answer: -13

Question: What is the solution?

Solve 2157*i - 9702 = 1863*i for i.

Answer: 33

Question: What is the solution?

Solve -91 = -3980300*g + 3980293*g for g.

Answer:
13