question: Teacher asked me this: Solve 43155 = -551*m + 273*m - 681*m for m.
++++++++++
answer: -45

question: Teacher asked me this: Solve 0 = -1946*f + 2089*f + 2574 for f.
++++++++++
answer: -18

question: Teacher asked me this: Solve 4481*y - 27 = 8974*y - 4520*y for y.
++++++++++
answer: 1

question: Teacher asked me this: Solve 4*b - b - 9 = 0 for b.
++++++++++
answer:
3