question: Teacher asked me this: Solve -45*b = 74*b - 18*b + 3030 for b.
++++++++++
answer: -30

question: Teacher asked me this: Solve 66*o = 713081 - 715523 for o.
++++++++++
answer: -37

question: Teacher asked me this: Solve -439*y + 144*y - 6490 = 0 for y.
++++++++++
answer: -22

question: Teacher asked me this: Solve 408*x = 182*x - 4972 for x.
++++++++++
answer:
-22