question: Teacher asked me this: Solve -216*i + 17*i = 46*i - 1715 for i.
++++++++++
answer: 7

question: Teacher asked me this: Solve -4353 = -142*r - 661 for r.
++++++++++
answer: 26

question: Teacher asked me this: Solve 67101*r = 66828*r - 11466 for r.
++++++++++
answer: -42

question: Teacher asked me this: Solve 0 = -46204*x + 46206*x - 26 for x.
++++++++++
answer:
13