The perimeter of a rectangle is 34 inches. the length is 4 less than twice the width. what is the length of the rectangle. write a system of equations for this problem. which one of the equations below would be part of that system?
L=length, W=width. Perimeter is P=2L+2W=34 also L=2W-4 solve this system of 2 equations by substitution. Put 2nd equation into first: 2(2W-4)+2W=34 4W-8+2W=34 6W=42 W=42/6 W=7 Now since L=2W-4 L=2(7)-4 L=10
