Question:
Solve -29*q - 1689 = 143*q + 1407 for q..

Answer:
-18

Question:
Solve 3*w + 63 = -9*w - 33 for w..

Answer:
-8

Question:
Solve -959 = 377*c - 1037 - 5200 for c..

Answer:
14

Question:
Solve -18*r + 33 + 39 = 0 for r..

Answer:
4