question: Teacher asked me this: Solve 3*a - 3 = 3 for a.
++++++++++
answer: 2

question: Teacher asked me this: Solve 0 = 757*f + 1382 + 4521 + 3181 for f.
++++++++++
answer: -12

question: Teacher asked me this: Solve 70 + 337 = 43*d - 109 for d.
++++++++++
answer: 12

question: Teacher asked me this: Solve 7*w + 2523 = 2495 for w.
++++++++++
answer:
-4