Answer
$(-12, 1)$ or, $(-2,6)$
Work Step by Step
Here, we have $x=2y-14$
Now, $y(2y-14)=-12$
This gives: $y^2-7y+6=0$
This yields : $(y-1) (y-6)=0$
when $y=1$ then we have $y=2(1)-14=-12$
when $y=6$ then we have $y=2(6)-14=-2$
Hence, our answers are: $(-12, 1)$ or, $(-2,6)$