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[2x-3y=15],[y=-(1)/(3)(x^(2)-16 x+63)]: If (x,y) is a solution to the system of equations shown and y > 0, what is the value of x ?

2x−3yamp;=15yamp;=−13(x2−16x+63)\begin{aligned}2 x-3 y & =15 \\y & =-\frac{1}{3}\left(x^{2}-16 x+63\right)\end{aligned}\newlineIf (x,y) (x, y) is a solution to the system of equations shown and y>0 , what is the value of x x ?

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