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Difficult Passport to Advanced Math Problem

Here is a nice SAT problem for you to try. I will post my own solution within the next few days. Meanwhile, feel free to post your own solutions in the comments.

Level 5 Passport to Advanced Math

y = x2 + 5x + 6
7x + 4 – y = 0

How many solutions are there to the system of equations above of the form (x,y), with x a real number?

(A) 0
(B) 1
(C) 2
(D) More than 2

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