Answer:
Step-by-step explanation:
[tex]y = \frac{36 - x^{2} }{9x^{2} + 7}[/tex]
[tex]9x^{2} y + 7y = 36 - x^{2}[/tex]
[tex]9x^{2} y + x^{2} = 36 - 7y[/tex]
[tex]x^{2} (9y+1) = 36 - 7y[/tex]
[tex]x^{2} = \frac{36 - 7y}{9y+1}\\\\x = \sqrt{\frac{36 - 7y}{9y + 1} }[/tex]
