question: Teacher asked me this: Solve -562*k = 3117 - 307 for k.
++++++++++
answer: -5

question: Teacher asked me this: Solve -90*m = -431*m - 1030 + 3758 for m.
++++++++++
answer: 8

question: Teacher asked me this: Solve 0 = 72*f + 169 + 130 - 83 for f.
++++++++++
answer: -3

question: Teacher asked me this: Solve 0 = -152*o + 175*o + 161 for o.
++++++++++
answer:
-7