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In the equation $y=\frac{7x+8z}{-3x+11z}$ you see right away that $y$ is a function of $x$ and $z$ .

But $z$ is also a function of $x$ and $y$ . What is the corresponding function rule? In other words, express $z$ in terms of $x$ and $y$ and enter your answer in the form $z=\text{ an expression in } x\text{ and }y\tiny.$

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