Question:
Solve -93 = -11*x - 20*x for x..

Answer:
3

Question:
Solve -3*k + 2522 = 94*k for k..

Answer:
26

Question:
Solve -150*c - 268*c - 26823 = -6885 + 5978 for c..

Answer:
-62

Question:
Solve 40 = 13*d - 12 for d..

Answer:
4