The formula for finding the perimeter, P, of a rectangle with length, l, and width, w, is given:

P = 2l + 2w

Which formula shows how the length of a rectangle can be determined from the perimeter and the width?

p P

A.) l = ------- - 2w C.) l = ----- + w

2 2

P - 2w P - 2

B.) l = --------- D.) l = ---------

2 2w

P = 2l + 2w

Which formula shows how the length of a rectangle can be determined from the perimeter and the width?

p P

A.) l = ------- - 2w C.) l = ----- + w

2 2

P - 2w P - 2

B.) l = --------- D.) l = ---------

2 2w

**Solve the given equation for the length, l.**

P = 2l + 2w

P - 2w = 2l {subtracted 2w from each side}

**P - 2w**

B.) l = ----------{divided each side by 2}

B.) l = ----------

**2**

**Ask Algebra House**