Question 322563
Width= X
Length= 2X+6
Perimeter= 84

P=2L+2W

84=2(2x+6)+2(x)
84=4x+12+2x
84=6x+12
84-12=6x
72/6=x
(X)=12(Width)
(2X+6)=30 (Length)
*check*
84=2(30)+2(12)
84=60+24
84=84