Why do you have to divide by 2 when solving for midpoint in geometry

Step-by-step explanation:

To find the midpoint which divides a line segment in half, we take the average of the  x's. So x1+x2 since I have two terms we  divide that by 2. That's a definition of an average, so by adding together the x's and dividing in half ,we can find the x coordinate.

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:

the least value out of the data shown is 5, maybe if you post a picture with it i could a little more.

step-by-step explanation: