Question:
Solve -11*w + 50 = -21*w for w..

Answer:
-5

Question:
Solve 259*o - 83*o - 1061 = 523 for o..

Answer:
9

Question:
Solve 10*b = -6*b + 2*b for b..

Answer:
0

Question:
Solve -53*v + 36*v - 17 = 0 for v..

Answer:
-1