question: Teacher asked me this: Solve -122*c + 120*c + 4 = 0 for c.
++++++++++
answer: 2

question: Teacher asked me this: Solve 64 = -26*g + 38 for g.
++++++++++
answer: -1

question: Teacher asked me this: Solve 10*i + 2*i = 13*i + 20 for i.
++++++++++
answer: -20

question: Teacher asked me this: Solve 166*o + 264*o - 6450 = 0 for o.
++++++++++
answer:
15