Answer
$9(3+x),$
simplifies to $\quad 27+9x$
Work Step by Step
" nine times..."$\rightarrow 9\cdot(...)$
"...the sum of $3$ and a number" $\rightarrow (3+x)$
the expression translates to$:\qquad 9(3+x)$
Using the distributive property,
$9(3+x)=9\cdot 3+9x$
= $27+9x$
