question: Teacher asked me this: Solve 11*n = 10*n + 2 for n.
++++++++++
answer: 2

question: Teacher asked me this: Solve 0 = 10*j - 20 + 30 for j.
++++++++++
answer: -1

question: Teacher asked me this: Solve -1208 = -360*a - 128 for a.
++++++++++
answer: 3

question: Teacher asked me this: Solve 7*w = 5429 - 5401 for w.
++++++++++
answer:
4