Question: What is the solution?

Solve 107*d = 289 + 139 for d.

Answer: 4

Question: What is the solution?

Solve 3497 = -12*g + 3449 for g.

Answer: -4

Question: What is the solution?

Solve 0 = -63*o + 131 - 13 + 323 for o.

Answer: 7

Question: What is the solution?

Solve -2*i - 3 = 3 for i.

Answer:
-3