The length of a rectangle is 3 more than 4 times it's width. the perimeter of the rectangle is 86 inches. what is the length of the rectangle?

Perimiter=2 (L+W)

L is 3 more than 4 times W

L=3+4W

P=86

sub

86=2 (L+W)

L=3+4W

86=2 (3+4W+W)

86=2 (3+5W)

divide both sides by 2

43=3+5W

minus 3 both sides

40=5W

divide boht sides by 5

8=W

sub back

L=3+4W

L=3+4 (8)

L=3+32

L=35

legnth=35 inches