Question:
Solve -97*c - 2967 = -1803 for c..

Answer:
-12

Question:
Solve 137*c + 639 + 2348 = 1419 - 3364 for c..

Answer:
-36

Question:
Solve -91*b = -155*b - 1408 for b..

Answer:
-22

Question:
Solve 3*q = 10 + 5 for q..

Answer:
5