question: Teacher asked me this: Solve 82*y - 105*y = -116*y + 837 for y.
++++++++++
answer: 9

question: Teacher asked me this: Solve 0 = 4*u - 2*u for u.
++++++++++
answer: 0

question: Teacher asked me this: Solve -19445*k = -19618*k - 7612 for k.
++++++++++
answer: -44

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