Question:
Solve -18*z + 1156 - 382 = 0 for z..

Answer:
43

Question:
Solve -135*d + 602 + 1769 + 599 = 0 for d..

Answer:
22

Question:
Solve 77*c + 234 = 103*c for c..

Answer:
9

Question:
Solve -1722*l - 478 = -1961*l for l..

Answer:
2