Answer
True
Work Step by Step
We use the following guideling:
$\frac{Dividend}{Divisor}$ = Quotient + $\frac{Remainder}{Divisor}$
Because 7 is the remainder and (2x + 1) is the divisor, following the above guideline, the remainder for this division is $\frac{7}{(2x + 1)}$.
So, this sentence is true.