Find the H. C.F of the following by prime factorization method. 1) 24 and 36 2) 56 and 72 3) 21 and 35 4) 45 and 81 5) 42 and 49

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:

answer: correct

step-by-step explanation:

2x+60=

step-by-step explanation: