6x-3y=20 through (4,-3)

Well x = 4 and y = - 3 so what we would do is plug in the numbers like this.

6 x 4-3 x - 3 = 20

Then lets break down the problem.

6x4=24 and 3x-3=-9

Now plug those numbers into our equation.

24 - (-9) = 20

Then figure out the problem.

24 - (-9) = 33

So the x, y is wrong.