question: Teacher asked me this: Solve -147*l - 90*l + 4850 = -43*l for l.
++++++++++
answer: 25

question: Teacher asked me this: Solve -497 = -1717*f + 442 + 778 for f.
++++++++++
answer: 1

question: Teacher asked me this: Solve -665*n - 1146 + 161 = 320*n for n.
++++++++++
answer: -1

question: Teacher asked me this: Solve 0 = 1930*l + 30837 - 144707 for l.
++++++++++
answer:
59