Question

the length of a retangle is 4 inches greater than the width. the perimeter of the retangle is 24 inches. What are the dimensions of the retangle?

Answer 1

$24 = 2w + 2(w+4) \\24 = 2w + 2w + 8 \\24 = 4w + 8 \\24 - 8 = 4w \\16 = 4w \\\tfrac{16}{4} = w 4 = w$

The width is 4 inches, and length is 8 inches.