question: Teacher asked me this: Solve -115*u + 404 = -1091 for u.
++++++++++
answer: 13

question: Teacher asked me this: Solve 70856*n = 71442*n + 50738 + 1416 for n.
++++++++++
answer: -89

question: Teacher asked me this: Solve -43*d - 2270 + 3173 = 0 for d.
++++++++++
answer: 21

question: Teacher asked me this: Solve -6 = 4*c + 6 for c.
++++++++++
answer:
-3