Question: What is the solution?

Solve 258*j = 118*j + 1540 for j.

Answer: 11

Question: What is the solution?

Solve -29 - 61 = 18*a for a.

Answer: -5

Question: What is the solution?

Solve 150*y - 182*y = -56*y - 172*y + 5096 for y.

Answer: 26

Question: What is the solution?

Solve -224*r - 945 - 2251 = -36*r for r.

Answer:
-17