Answer
$x=\dfrac{3}{2}; y=5$
Work Step by Step
First, we isolate y:
$y=4x-1 $
Now, plug the value of $y$ into the second equation.
$8x+4x-1-17=0 \implies 12x-18=0$
We get: $x=\dfrac{3}{2}$
Now, we find y:
$y=4(3/2)-1=5$
Thus, $x=\dfrac{3}{2}; y=5$