Question: What is the solution?

Solve 0 = 214*m - 458 - 83 + 2253 for m.

Answer: -8

Question: What is the solution?

Solve -12*r + 42*r + 70 = 17*r + 8*r for r.

Answer: -14

Question: What is the solution?

Solve 50*y + 127 = -23 for y.

Answer: -3

Question: What is the solution?

Solve 1851*l = -7844 - 2819 - 24506 for l.

Answer:
-19