Question 798407
VARIABLES:
let the width of the rectangle = x

let length= 4+2x

since you are finding the perimeter of the rectangle, the formula is 

length + length + width + width = perimeter ==> 2(length)+2(width)= perimeter

plug in variables for length and width.
 2x+2(4+2x)=62
 2x+8+4x=62
 6x+8=62 (subtract 8 from both sides)
 6x=54 (divide doth sides by 6)
 x=9  
so the width is 9
length is 4+2x ==> 4+2(9) ==> 22
answer: width 9  length 22

check:
9+9+22+22=62
18+44=62
62=62