Question 716902
Perimeter of rectangle= sum of all 4 sides or 2(L+W)
Width: 'x'
Length: 2x+2
Perimeter= 40

2(x+2x+2)=40 "OR"
x+x+2x+2+2x+2=40

6x+4=40
Subtract 4 from both sides to get x term alone on one side
6x=36
Divide both sides by 6 to get x alone
x=6

Length= 14m