$$2x+3y+8=0x-y-1=0.$$
$x=-\frac{5}{2}\text{ and }y=-1$
$x = -\frac{5}{2} = -2\frac{1}{2} = -2.5$
$y=-1$
$y=-1$
$x = -\frac{5}{2} = -2\frac{1}{2} = -2.5$