SOLUTION: The perimeter of a rectangle is 48cm. The length is 12 cm longer than the width. Find the dimension

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Question 261709: The perimeter of a rectangle is 48cm. The length is 12 cm longer than the width. Find the dimension
Answer by checkley77(12844) About Me  (Show Source):
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L=W+12
2L+2W=48
2(W+12)+2W=48
2W+24+2W=48
4W=48-24
4W=24
W=24/4
W=6 ANS. FOR THE WIDTH.
L=6+12=18 ANS. FOR THE LENGTH.
PROOF:
2*18+2*6=48
36+12=48
48=48