Question

despega la variable x^2+y=9

x
y

Answer 1

$\text{Despejando }y \\[2pt] x^2+y=9 \\[2pt] \boxed{y=9-x^2}$

$\text{Despejando }x \\[2pt] x^2+y=9 \\[2pt] x^2=9-y \\[2pt] x=\pm \sqrt{9-y} \\[2pt] \text{Son dos expresiones :} \\[2pt] \boxed{x=\sqrt{9-y} } \ \vee \ \boxed{x=-\sqrt{9-y}}$