the common denominator is 6x
we multiply the first term by 2x/2x and the second term by 3/3
(x+1)/3 * 2x/2x - (x+2)/2x* (3/3)
2x(x+1) /6x- (x+2)*3/6x
distribute
(2x^2+2x -3x-6 )/6x
(2x^2-x-6)/6x
The numerator is (2x^2-x-6)
(0,4) (0,-2) (-2,0)
for the reflection over the x-axis, all the y values go to their opposite (0,-4) (0,2) (2,0)
then at the rotation it goes (-x,-y) and becomes (0,4) (0,-2) (-2,0)
The biggest one is there it’s obvious.
Subtract 3x from both sides
3x - 3x - 2y = -3x - 16
divide both sides by -2
-2y / -2 = -3x / -2 - 16 / -2
y = -3/2x + 8