question: Teacher asked me this: Solve -28*r + 164 + 172 = 0 for r.
++++++++++
answer: 12

question: Teacher asked me this: Solve 62*n + 42*n - 5826 = -5202 for n.
++++++++++
answer: 6

question: Teacher asked me this: Solve 0 = -3*z - 3*z - 24 for z.
++++++++++
answer: -4

question: Teacher asked me this: Solve 0 = 35237*q - 35289*q - 3276 for q.
++++++++++
answer:
-63