Question:
Solve 0 = 2*c - 31*c + 74 + 100 for c..

Answer:
6

Question:
Solve -17*i + 21*i + 20 = 0 for i..

Answer:
-5

Question:
Solve -8*q + 109 - 32 + 11 = 0 for q..

Answer:
11

Question:
Solve 2068*g = 606*g - 1100*g + 69174 for g..

Answer:
27