SOLUTION: the perimeter of a rectangle is 176 cm. the length is equal to 3 times the width decreased by 4. Find the dimensions of the rectangle

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Question 991380: the perimeter of a rectangle is 176 cm. the length is equal to 3 times the width decreased by 4. Find the dimensions of the rectangle
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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the perimeter of a rectangle is 176 cm.
2L + 2W = 176
simplify, divide by 2
L + W = 88
the length is equal to 3 times the width decreased by 4.
L = 3W
Find the dimensions of the rectangle
Replace L in the 1st simplified equation with 3W
3W + W = 88
4W = 88
W = 88/4
W = 22 is the width
then
3(22) = 66 cm is the length