Question: What is the solution?

Solve -15*n - n = 112 for n.

Answer: -7

Question: What is the solution?

Solve 53*j = 146*j + 93 for j.

Answer: -1

Question: What is the solution?

Solve 29*l + 26*l + 258 = 12*l for l.

Answer: -6

Question: What is the solution?

Solve 509 = 91*n - 143*n + 145 for n.

Answer:
-7