Find the ordered triple (p,q,r) that satisfies the following system:
p - 2q = 3
q - 2r = -2 + q
p + r = 9 + p
p - 2q = 3 (eq 1)
q - 2r = -2 + q (eq 2)
p + r = 9 + p (eq 3)
By eq 2 r = 1
By eq 3 r = 9
Both can't be true so there is no solution.
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+617 
