Using the following image, find FG given GH = 7 and FH = 15.

8

Step-by-step explanation:

FH = FG+GH

15 = FG + 7

FG = 15 -7

FG = 8

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: