Question:
Solve -8*b - 6*b + 24 = -2*b for b..

Answer:
2

Question:
Solve 145*c + 3128 = -237*c + 246*c for c..

Answer:
-23

Question:
Solve 0 = 311*o + 4483 + 3150 - 2035 for o..

Answer:
-18

Question:
Solve 68 = -92*f + 120*f - 44 for f..

Answer:
4