Question 47962
PERIMETER =2*LENGTH+2*WIDTH OR LENGTH IS 2W+3 AND W=WIDTH THUS

2(2W+3)+2W=36 OR 4W+6+2W=36 OR 6W=30 OR W=30/6 OR W=5 

PROOF 2*5+2(2*5+3)=36 OR 10+2(13)=36 OR 10+26=36 OR 36=36