-12+x= 23 I need help

Step-by-step explanation:

35

add 12 to both sides. x= 35

-12 + x =23

x = 23 + 12

x = 35

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:

is only a line? i think so