Use the perimeter formula $\displaystyle {P}={2}{l}+{2}{w}$ to find the length, $\displaystyle {l}$, of a rectangular lot if the width, $\displaystyle {w}$, is $\displaystyle {35}$ feet and the perimeter, $\displaystyle {P}$, is $\displaystyle {220}$ feet.

$\displaystyle {l}=$ feet