Question 823638
x = width
2x + 3 = length {the length is 3 more than twice the width}


Perimeter of a rectangle is 2(width) + 2(length}


2x + 2(2x + 3) = 78 {substituted given information into perimeter formula}
2x + 4x + 6 = 78 {used distributive property}
6x + 6 = 78 {combined like terms}
6x = 72 {subtracted 6 from each side}
x = 12 {divided each side by 6}


width = 12 cm
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