please solve

Apiece of sheet metal is 2.6 times as long as it is wide. It is to be made into a box with an open top by cutting 3-inch squares from each comer and folding up the sides. Answer the following questions. Let x represent the width of the original piece of sheet metal. .m Represent the Iengih of the original piece of sheet metal in terms of x. The length is D. (Use integers or decimals [or any numbers in the expression.)