Question: What is the solution?

Solve -202*b = -41*b - 108*b - 1113 for b.

Answer: 21

Question: What is the solution?

Solve -1458*t - 18408 = 25147 + 1643 for t.

Answer: -31

Question: What is the solution?

Solve 0 = 9*r - 658 + 604 for r.

Answer: 6

Question: What is the solution?

Solve -1 + 1 = -8*l for l.

Answer:
0