SOLUTION: A square plywood has a perimeter which is 7 times the length of a side decreased by 21. Find the length of a side
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Question 458472: A square plywood has a perimeter which is 7 times the length of a side decreased by 21. Find the length of a side
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Let 
represent the measure of one side. Then the perimeter is 
by definition and the perimeter is 
as a given. So:
Just solve for .
John
My calculator said it, I believe it, that settles it
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