You could use Desmos and type it as it is and it'll show you, but you can also just convert it and plot it
Desmos: Click Here
Convert: 2x-3y=6
-3y=-2x+6
y= 2/3x - 2
so now we know that the starting point is at -2 on the y-axis so you put a point there and then you go up 2 and 3 to the right..... and on the other side from your starting point you go down 2 and 3 to the left and that's how you graph it
hope this helps you