question: Teacher asked me this: Solve 0 = -o + 79 - 75 for o.
++++++++++
answer: 4

question: Teacher asked me this: Solve 13*w = -7*w - 20 for w.
++++++++++
answer: -1

question: Teacher asked me this: Solve -54 + 51 = j for j.
++++++++++
answer: -3

question: Teacher asked me this: Solve -86*n = -110*n - 120 for n.
++++++++++
answer:
-5