Question

3 (2 - 3x ) + 12 < 5 (4 - x) ​

Answer 1

Resposta: {x ∈ R | x > -1/2}

3(2-3x) + 12 < 5 (4-x)

6 - 9x + 12 < 20 - 5x

-9x + 5x < 20 - 6 - 12

-4x < 2 (-1)

4x > -2

x > -2/4

x> -1/2