#### Answer

$-14x-21$

#### Work Step by Step

The distributive property states that for any real numbers a, b, and c,
$a(b+c) = ab+ac$
Thus, when the distributive property is applied to the given expression, the given expression is equivalent to:
$=-7(2x) +(-7)(3)
\\=-14x+(-21)
\\=-14x-21$