Question 269231
"A rectangular rug is 3 feet longer than it is wide." {{{L=3+W}}}
"If the area of the rug is 40 square feet." {{{L(W)=40}}}
{{{L(W)=40}}}
{{{L=3+W}}}
{{{(3+W)(W)=40}}}
{{{(3W+W^2)=40}}}
{{{(3W+W^2)-40=40-40}}}
{{{W^2+3W-40=0}}} can do quadratic formula or its just faster to guess, i guessed W=5
{{{W=5}}} it works 5^2+3(5)-40=0  25+15-40=0  40-40=0
{{{L=3+W}}}plug in W=5
{{{L=3+5}}}
{{{L=8}}}
problem solved