Question

E= {x/x = IN; 13 < 3x+2 < 27}

Answer 1

Resolvemos para x la inecuación.

13 < 3 x + 2 < 27

13 - 2 < 3 x < 27 - 2

11/3 < x < 25/3

3 < x < 9

O bien {4, 5, 6, 7, 8}