Anthony wants to buy the same number of hats for three of his friends he has $57 and each hat cost $5 what is the largest number of hats that anthony bodies for each of his friends

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: c

(2, -4)

goes 7 to the

(9, 4)

easy