Question: What is the solution?

Solve 26886*j = 26900*j + 154 for j.

Answer: -11

Question: What is the solution?

Solve 219*i + 4256 = -9934 - 2673 for i.

Answer: -77

Question: What is the solution?

Solve 17*b + 420 = 76*b + 25*b for b.

Answer: 5

Question: What is the solution?

Solve -73*r + 92*r + 66*r - 687 = 3053 for r.

Answer:
44