Question

27+x
---------- = x+3
4

Answer 1

$\frac{27 + x}{4} = x + 3$
$\frac{27 - 3}{4} = {x}^{2}$
$\frac{24}{4} = {x}^{2}$
$6 = {x}^{2}$
$x = \sqrt{6}$