The perimeter of a rectangle is 64 feet. The length of the rectangle is 3 times the width of the rectangle. If w represents the width of the rectangle, the equation that represents the perimeter is 2 (3 w) + 2 w = 64. Which shows the first step that should be taken to verify that the width of the rectangle is 8?
2 (8) + 2 (8) = 64
2 (3 + 8) + (2 + 8) = 64
2 (3 (8)) + 2 (8) = 64
2 (3 + 8) + 2 (8) = 64