question: Teacher asked me this: Solve 6*d = -14*d + 25*d for d.
++++++++++
answer: 0

question: Teacher asked me this: Solve -78*u - 24 = -82*u for u.
++++++++++
answer: 6

question: Teacher asked me this: Solve 2120 = 439*n - 182 - 332 for n.
++++++++++
answer: 6

question: Teacher asked me this: Solve -14 - 40 - 116 = -34*f for f.
++++++++++
answer:
5