Question

3x - 4 < x + 12 prfvr!!!

Answer 1

$3x - 4 < x + 12\\\\3x - x > 12 + 4\\\\2x > 16\\\\x>\frac{16}{2}\\\\x> 8$

Answer 2

3x-4 < x+12

3x-x < 12+4

2x < 16

 x < 16/2

 x < 8

Resposta → S= {x ∈ R | x < 8}