The perimeter of a rectangular backyard is 6x + 6 yards. If the width is x yards, find a binomial for length.?

Question

Perimeter of a rectangle...

Answer 1

I don't know what does it mean "binomial for length"... but my guess is:

6x + 6 = perimeter, where perimeter of a rectangle = 2 * (width + length)

=> 6x + 6 = 2 * (x + length)

=> 6x + 6 = 2x + 2l

=> 6x - 2x + 6 = 2x - 2x + 2length

=> 4x + 6 = 2length

=> (4x + 6)/2 = length

=> 2x + 3 = length