SOLUTION: the perimiter of a rectangle is 40 meters. Its width is 8 meters. what is its length

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Question 551378: the perimiter of a rectangle is 40 meters. Its width is 8 meters. what is its length
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
the perimiter of a rectangle is 40 meters. Its width is 8 meters. what is its length
.
Let x = length
then
2(x+8) = 40
dividing both sides by 2:
(x+8) = 20
subtracting 8 from both sides:
x = 12 meters