Andy is hanging wallpaper in his kitchen. he is able to cover of the walls in the room using 6 rolls of wallpaper. what is the number of rolls of paper used per wall? the number of rolls per wall is

Assuming there are 4 walls

6/4 = 1.5 rolls per wall

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:

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.