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length of rectangle is 3cm longer than twice the width and

Resolved Question:

length of rectangle is 3cm longer than twice the width and that the perimeter of the rectangle is 90cm. a) equation for perimeter involving only W, the width of the rectangle b)solve the linear equation algebraically to find the width of the rectangle, find the length also c)using same length as answer in part b, find new perimeter if new width is 5 less than one-half of the length