Here is the transcribed text from the image: 1. \( x^2 + \frac{y}{z} = 7 , y^2 - x = \left( \frac{7}{y} \right) \) 2. \( a^2 + 14a - 51 = 0 \) 3. \( x^2 - 12x + 11 = 0 \) The image includes three mathematical equations. The first is a system of equations involving variables \( x \), \( y \), and \( z \). The second and third are quadratic equations in terms of variables \( a \) and \( x \), respectively. There are no graphs or diagrams in the image.

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