Question

alguem sabe X/2 +5=6+x

Answer 1

x(x + 4) + x(x + 2) = 2x2 + 12

Answer 2

$x + 5 = (6 + \times )2$
$x + 5 = 12 + 2x \\ x - 2x = 12 - 5 \\ - x( - 1) = 7( - 1)$

X=-7