question: Teacher asked me this: Solve 552*r - 567*r + 45 = 0 for r.
++++++++++
answer: 3

question: Teacher asked me this: Solve 428 = -425*g + 639*g for g.
++++++++++
answer: 2

question: Teacher asked me this: Solve -36*y + 432 = 18*y for y.
++++++++++
answer: 8

question: Teacher asked me this: Solve -819*o = 40858 - 19601 + 54910 for o.
++++++++++
answer:
-93