Four
Four times a number, minus
5
5, is equal to
three
three times the number, plus
9
9. Find the number.

Four times a number minus 5 is equal to three times the number plus 9. Find the number.

Let the required number be x.

Atq,

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: