Question:
Solve -1517*x + 75089 + 3795 = 0 for x..

Answer:
52

Question:
Solve -6481*b + 6406*b = 1275 for b..

Answer:
-17

Question:
Solve -18*o + 3109 = 2947 for o..

Answer:
9

Question:
Solve 249 + 345 = -32*r + 210 for r..

Answer:
-12