Answer
$7x+2x$,
simplifes to $9x$
Work Step by Step
7 times a number $\rightarrow 7x$
twice the number $\rightarrow 2x$
the sum...$\rightarrow \boxed{ 7x+2x}$
Combine like terms by combining the coefficients of the terms and keeping the same variable factor.
result:$\qquad 9x$
