Question:
Solve 0 = -19*b - 151*b + 1870 for b..

Answer:
11

Question:
Solve 1723 = 53*x + 1935 for x..

Answer:
-4

Question:
Solve -6 = -t + 3*t for t..

Answer:
-3

Question:
Solve 3*o - 4 = 2*o for o..

Answer:
4