Question: What is the solution?

Solve 147*t - 148*t = -6 for t.

Answer: 6

Question: What is the solution?

Solve 0 = 33*b + 458 - 689 for b.

Answer: 7

Question: What is the solution?

Solve 63*c + 102*c - 1480 = 313*c for c.

Answer: -10

Question: What is the solution?

Solve -91*i - 89*i + 2387 = 83*i - 46*i for i.

Answer:
11