SOLUTION: A rectangle is 3 meters longer than it is wide. If the width of the rectangle is doubled and the length is decreased by 4 meters, the area is unchanged. Find original length and wi

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Question 742776: A rectangle is 3 meters longer than it is wide. If the width of the rectangle is doubled and the length is decreased by 4 meters, the area is unchanged. Find original length and width
Answer by tommyt3rd(5050)   (Show Source): You can put this solution on YOUR website!
l=w+3 so


After w is doubled and length is decreased by 4,

Now since the area has not changed




So width is 0 or 5m
We can discard the 0 solution.
Length is w+3, so length is 8m

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