Use an Equation to Solve the Problem $50 \mathrm {~m}$ the Length Is

Use an equation to solve the problem.
-A construction company builds a swimming pool with a perimeter of $50 \mathrm {~m}$ . The length is $3 \mathrm {~m}$ more than the width. Find the dimensions of the swimming pool?

A) $19 \mathrm {~m} \times 11 \mathrm {~m}$
B) $9 \mathrm {~m} \times 11 \mathrm {~m}$
C) $14 \mathrm {~m} \times 3 \mathrm {~m}$
D) $14 \mathrm {~m} \times 11 \mathrm {~m}$