question: Teacher asked me this: Solve -409*u = -413*u + 2 - 10 for u.
++++++++++
answer: -2

question: Teacher asked me this: Solve -1371*n + 62020 = 295*n + 689*n - 583*n for n.
++++++++++
answer: 35

question: Teacher asked me this: Solve -30*u = -28*u + 2 for u.
++++++++++
answer: -1

question: Teacher asked me this: Solve 56*j + 452 + 231 = -157 for j.
++++++++++
answer:
-15