QuestionSolve for $x$ by completing the square: $x^{2}-7 x=-12$. Also, find $x$ and $y$ for $y-2 x+4=0$ and $x^{2}+y=4$.

Studdy Solution
Substitute $x =2$ and $x = -$ into the equation $y =2x -$ to solve for $y$.
For $x =2$, $y =2(2) - =0$. For $x = -$, $y =2(-) - = -12$.
So the solutions are $(2,0)$ and $(-, -12)$.