Question: What is the solution?

Solve -399*v = -139*v + 4187 - 807 for v.

Answer: -13

Question: What is the solution?

Solve -736*k - 28224 = -1728 for k.

Answer: -36

Question: What is the solution?

Solve -353 = -2*l - 349 for l.

Answer: 2

Question: What is the solution?

Solve -199*q + 579*q - 194*q - 747 = 195*q for q.

Answer:
-83