I'd really appreciate it if you'd ! : ) john's mother takes him to the doctor's office every year around his birthday. using h=2y+36 as the equation, in how many years will john's height measure 72 inches?

How tall is he currently? is he 5 and like 40 inches? If he starts at 0 inches it will take 2 years to be 72 inches but i think he's probably taller.

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: