Question: What is the solution?

Solve 5725*i = 5732*i + 42 for i.

Answer: -6

Question: What is the solution?

Solve 42 = -12*r - 6 for r.

Answer: -4

Question: What is the solution?

Solve -2493*n - 3735 = 2302 + 28865 for n.

Answer: -14

Question: What is the solution?

Solve 37*l = -15*l + 5*l - 15*l - 2542 for l.

Answer:
-41