question: Teacher asked me this: Solve -5*w + 73 = 53 for w.
++++++++++
answer: 4

question: Teacher asked me this: Solve 0 = -17*o + 311 - 30 - 60 for o.
++++++++++
answer: 13

question: Teacher asked me this: Solve 422*b - 562*b + 9104 = 166*b + 263*b for b.
++++++++++
answer: 16

question: Teacher asked me this: Solve r = -r - 2 for r.
++++++++++
answer:
-1