the perimeter of a rectangle is 40m. it's length is 4m less than five times its breadth. find the dimensions of the rectangle
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2(l+,b)=40
b=l-4
2(2l-4)=40
(2l=40÷2+4
l=12
b=8
b=l-4
2(2l-4)=40
(2l=40÷2+4
l=12
b=8
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