question: Teacher asked me this: Solve 294*r - 104 = 281*r for r.
++++++++++
answer: 8

question: Teacher asked me this: Solve -333*s + 408*s = 1350 for s.
++++++++++
answer: 18

question: Teacher asked me this: Solve -21944 = 548*f + 296*f for f.
++++++++++
answer: -26

question: Teacher asked me this: Solve -40*y - 853 = 7*y - 54 for y.
++++++++++
answer:
-17