question: Teacher asked me this: Solve 0 = 529*r - 456*r + 365 for r.
++++++++++
answer: -5

question: Teacher asked me this: Solve -42*f = -37*f + 20 for f.
++++++++++
answer: -4

question: Teacher asked me this: Solve 654*z = 129*z + 9975 for z.
++++++++++
answer: 19

question: Teacher asked me this: Solve -4*g - 6*g - 10 = 0 for g.
++++++++++
answer:
-1