Solve the inequality.

x + 12 < 8 − 3x

A) x < 1
B) x < 2
C) x < −1
D) x < −2

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: