SOLUTION: Suppose that the length of a rectangle is 7 centimeters less than three times its width. The perimeter of the rectangle is 98 centimeters. Find the length and width of the rectangl

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Question 262346: Suppose that the length of a rectangle is 7 centimeters less than three times its width. The perimeter of the rectangle is 98 centimeters. Find the length and width of the rectangle.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
L=3W-7
2L+2W=98
2(3W-7)+2W=98
6W-14+2W=98
8W=98+14
8W=112
W=112/8
W=14 CM. IS THE WIDTH
L=3*14-7
L=42-7
L=35 CM. IS THE LENGTH.
PROOF:
2*35+2*14=98
70+28=98
98=98