SOLUTION: The perimeter of a rectangle is 56cm. The width is 6cm less than the lenght. Find the width and the lenght

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Question 95840: The perimeter of a rectangle is 56cm. The width is 6cm less than the lenght. Find the width and the lenght
Answer by checkley71(8403) About Me  (Show Source):
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2L+2W=56
2L+2(L-6)=56
2L+2L-12=56
4L=56+12
4L=68
L=68/4
L=17 ANSWER FOR THE LENGTH.
W=17-6
W=11 ANSWER FOIR THE WIDTH.
PROOF
2*17=2*11=56
34+22=56
56=56