Find the ordered triple (p,q,r) that satisfies the following system:
p - 2q = 3
q - 2r = -2 + q
p + r = 9 + p
No solution
If
Then
-2r = -2
r =1 (1)
If r =1
r = 9
Which contradicts (1)
The solution is (p,q,r) = (-4,5,8).