question: Teacher asked me this: Solve 232*f - 243*f - 33 = 0 for f.
++++++++++
answer: -3

question: Teacher asked me this: Solve -d + 61 + 42 - 70 = 0 for d.
++++++++++
answer: 33

question: Teacher asked me this: Solve -101*u + 164*u = 252 for u.
++++++++++
answer: 4

question: Teacher asked me this: Solve -819800*u + 819830*u - 23 + 413 = 0 for u.
++++++++++
answer:
-13