question: Teacher asked me this: Solve 394*f = 101*f + 2480 - 722 for f.
++++++++++
answer: 6

question: Teacher asked me this: Solve -19*b + 88 = 3*b for b.
++++++++++
answer: 4

question: Teacher asked me this: Solve -17*k - 140 = -7*k for k.
++++++++++
answer: -14

question: Teacher asked me this: Solve -16 = -633*q + 625*q for q.
++++++++++
answer:
2