Question 237934
width = w
lenght = l = 2w+3
Perimeter = 2w+2l=36
.
{{{2w+2l=36}}}
{{{2w+2(2w+3)=36}}}
{{{2w+4w+6=36}}}
{{{6w=36-6}}}
{{{w=30/6}}}
{{{w=5}}} <--- this is your width
.
Since lenght is 2w+3, we can say:
{{{l=2w+3}}}
{{{l=(2*5)+3}}}
{{{l=10+3}}}
{{{1=13}}}
.
Check:
Since there are two widths and two lenghts to form a perimeter of a rectangle, we add: 5+5+13+13=36