Question 1151116
2L + 2W = 8   
L = 1 + 2W <br>

Putting these together:<br>

2(1+2W) + 2W = 8
2 + 4W + 2W = 8
  6W = 6   --> {{{ green( W = 1 ) }}} ==> {{{ green ( L = 3 )}}} <br>

Check:  2L+2W = 2(3)+2(1) = 6+2 = 8