Question 76540
P=2W+2L or P=2(W+L)
P=6X+6 or P=6(X+1) 
2(W+L)=6(X+1) GIVEN THAT THE LENGTH IS X THEN WE HAVE
2(X+L)=6(X+1)
2X+2L=6X+6
2L=6X-2X+6
2L=4X+6
L=4X/2+6/2
L=2X+3