# How do you simplify 6(sqrt 15) - sqrt 15 + sqrt 15?

$6 \left(\sqrt{15}\right) - \sqrt{15} + \sqrt{15} = 6 \sqrt{15} = 6 \cdot 3.873 = 23.238$
$6 \left(\sqrt{15}\right) - \sqrt{15} + \sqrt{15} = 6 \sqrt{15} = 6 \cdot 3.873 = 23.238$