Question:
Solve 0 = -7*b - 8*b + 60 for b..

Answer:
4

Question:
Solve 34*g - 81 = -43*g + 50*g for g..

Answer:
3

Question:
Solve 0 = 5*b + 14 + 6 for b..

Answer:
-4

Question:
Solve 6*k - 170 = -158 for k..

Answer:
2