Question:
Solve -1054 = -130*w + 1457 - 691 for w..

Answer:
14

Question:
Solve -241*o + 6258 - 4996 = 186*o - 17953 for o..

Answer:
45

Question:
Solve 25*c - 229 = -779 for c..

Answer:
-22

Question:
Solve -18 = 95*f - 93*f for f..

Answer:
-9