question: Teacher asked me this: Solve 0 = 212*f - 123 + 426 + 121 for f.
++++++++++
answer: -2

question: Teacher asked me this: Solve -79*b - 876 = -86 for b.
++++++++++
answer: -10

question: Teacher asked me this: Solve -124 + 25 - 3 = 17*q for q.
++++++++++
answer: -6

question: Teacher asked me this: Solve 0 = 69*v - 71*v - 2 for v.
++++++++++
answer:
-1