Answer
$13x+33$
Work Step by Step
Using $a(b+c)=ab+ac$ or the Distributive Property and then combining like terms, the given expression, $
3x-2+5(2x+7)
$, simplifies to
\begin{array}{l}\require{cancel}
3x-2+5(2x)+5(7)
\\\\=
3x-2+10x+35
\\\\=
(3x+10x)+(-2+35)
\\\\=
13x+33
.\end{array}