Question:
Solve -13*s = -134 + 82 for s..

Answer:
4

Question:
Solve 2849*k + 2918*k = -2831*k + 8459*k - 1529 for k..

Answer:
-11

Question:
Solve 0 = 56*o - 3047 + 3271 for o..

Answer:
-4

Question:
Solve 164596*i - 163578*i = 86530 for i..

Answer:
85