Question 1168806

Can I please have help with this question? Thank you in advance. 

A man has marked off an area in his yard where he will plant a garden. Find the dimensions of the rectangular area if the length is 3  feet more than 3 times the width and the area is 396 square feet.
<pre>{{{highlight_green(matrix(2,3, "Width:", 11, feet, "Length:", 36, feet))}}}