Celine's cereal company is launching a new brand of cereal and she is considering two different sizes for the base of the boxes. box 1: the length is 3 times the width. box 2: the length is 1 less than 4 times the width. the dimensions of the base of box 1 are: width: x; length: 3 width: x; length: x + 3 width: x; length: x – 3 width: x; length: 3x the dimensions of the base of box 2 are: width: x; length: 3 width: x; length: 4x – 1 width: x; length: x – 4 width: x; length: 4x + 1,

i have the answer for box 1: width: x; legnth: 3x
but what is box 3