Question:
Solve -5055*n + 42 = -5062*n for n..

Answer:
-6

Question:
Solve -18*x + 13*x + 3 - 14 - 14 = 0 for x..

Answer:
-5

Question:
Solve 28970 + 1637 = -1285*k - 4088 for k..

Answer:
-27

Question:
Solve 17 = -5*r + 2 for r..

Answer:
-3