question: Teacher asked me this: Solve -12041*f + 2527 = -12174*f for f.
++++++++++
answer: -19

question: Teacher asked me this: Solve -160*u - 30 = -170*u for u.
++++++++++
answer: 3

question: Teacher asked me this: Solve -63 = 365*s - 356*s for s.
++++++++++
answer: -7

question: Teacher asked me this: Solve -15*j = -30 - 15 for j.
++++++++++
answer:
3