Question: A rectangular picture frame measures 20 cm by 30 cm. A matte is made of uniform width to go inside the frame and make a

A rectangular picture frame measures 20 cm by 30 cm. A
matte is made of uniform width to go inside the frame and

A rectangular picture frame measures 20 cm by 30 cm. A matte is made of uniform width to go inside the frame and make a nice border for the picture. The area of the matte is to be equal to the area of the picture. What is the width of the matte?

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