Respuesta :
solve by subsitution
y=4x-9=y=x-3
4x-9=x-3
minus x both sides
3x-9=-3
add 9 to both sides
3x=6
divide by 3 both sides
x=2
sub ack
y=x-3
y=2-3
y=-1
x=2
y=-1
(x,y)
(2,-1)
y=4x-9=y=x-3
4x-9=x-3
minus x both sides
3x-9=-3
add 9 to both sides
3x=6
divide by 3 both sides
x=2
sub ack
y=x-3
y=2-3
y=-1
x=2
y=-1
(x,y)
(2,-1)