SOLUTION: a rectangle has a perimeter of 78 in. its length is 6 in more than twice its length.

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Question 240425: a rectangle has a perimeter of 78 in. its length is 6 in more than twice its length.
Answer by checkley77(12569) About Me  (Show Source):
You can put this solution on YOUR website!
L=2W+6
2L+2W=78
2(2W+6)+2W=78
4W+12+2W=78
6W=78-12
6W=66
W=66/6
W=11 ANS.
L=2*11+6
L=22+6
L=28 ANS.
PROOF:
2*28+2*11=78
56+22=78
78=78