Answer:
x > 2
Explanation:
given
4x +
(2x + 4) > 12 ← distribute parenthesis by

4x + x + 2 > 12 ( collect like terms on left side
5x + 2 > 12 ( subtract 2 from both sides )
5x + 2 - 2 > 12 - 2 ( simplify both sides )
5x > 10 ( divide both sides by 5 )
x >
, that is
x > 2