i need to figure this out

Sadie computes the perimeter of a rectangle by adding the length, l, and width, w, and doubling this sum. eric computes the perimeter of a rectangle by doubling the length, l, doubling the width, w, and adding the doubled amounts. write an equation for sadie’s way of calculating the

Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )

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