question: Teacher asked me this: Solve -128*n - 402 = 6*n for n.
++++++++++
answer: -3

question: Teacher asked me this: Solve 0 = -5*u + 7*u for u.
++++++++++
answer: 0

question: Teacher asked me this: Solve -563*c + 286*c - 496*c = 184*c + 5742 for c.
++++++++++
answer: -6

question: Teacher asked me this: Solve 0 = -43*a + 24*a - 95 for a.
++++++++++
answer:
-5