Question 122878
L=2W+3
2(2W+3)+2W=36
4W+6+2W=36
6W=36-5
6W=30
W=30/6
W=5 in. 
PROOF
2(2*5+3)+2*5=36
2(10+3)+10=36
2*13+10=36
26+10=36
36=36