The length of a rectangle is 3 centimeters more than 3 times the width. If the perimeter of the rectangle is 46 centimeters, find the dimensions of the rectangle.
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1....rim-leng=46, so half-rim=23=leng+wide


thus, half-rim...leng+wide=wide+3wide+3...4wide+3=23


leng=23 -wide=23-5=18

chek...leng=3*wide+3=(3*5) +3....15+3=18


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