The x-coordinates of the points (112,−3) and (112,3) are the same and their y-coordinates are opposites. What does this mean in terms of the positions of the points?

They are reflected across the x-axis

Step-by-step explanation:

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: