Question: What is the solution?

Solve -11*c = -42 - 13 for c.

Answer: 5

Question: What is the solution?

Solve 0 = 689*i - 743*i - 432 for i.

Answer: -8

Question: What is the solution?

Solve 0 = -142*g + 120 - 138 + 83 + 77 for g.

Answer: 1

Question: What is the solution?

Solve -3*t = -11*t - 16 for t.

Answer:
-2