Question:
Solve 141*c - 4750 = 1831 + 2161 for c..

Answer:
62

Question:
Solve 0*l - 4*l - 12 = 0 for l..

Answer:
-3

Question:
Solve 116 + 1 = -117*d + 1170 for d..

Answer:
9

Question:
Solve -10*x - 139 = 71 - 60 for x..

Answer:
-15