Question:
Solve -12*s - 71 = -95 for s..

Answer:
2

Question:
Solve 33*c - 1314 + 8085 = 3141 for c..

Answer:
-110

Question:
Solve 15*i + 135*i - 16*i + 6700 = 0 for i..

Answer:
-50

Question:
Solve -107*k + 126 - 519 = 463 for k..

Answer:
-8