You can put this solution on YOUR website!
Let's make the width equal x.
That would make the length 3x+3.
If the perimeter is 22, the formula is length+length+width+width or 2length+2width.
So we would plug in our variables giving us the equation: 2x+[2(3x+3)]=22.
Multiply and you'd get 2x+6x+6=22.
Subtract 4 from each side to get 2x+6x=16.
Add like terms giving you: 8x=16
Divide both sides 8 to get x=2.
Plug in 6 to get x=6 and 3x+3=21.
So your length would be 21 and your width would be 6.