Question:
Solve -220*w - 99 = -231*w for w..

Answer:
9

Question:
Solve -36*b + 112*b + 324 = 103*b for b..

Answer:
12

Question:
Solve 2608 = 4*g + 2492 for g..

Answer:
29

Question:
Solve 0*v = -3*v + 4*v for v..

Answer:
0