SOLUTION: Find length of rectangular lot with perimeter of 86 meters if the length is 7 meters more than the width. (P=2L+2W)

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Question 931388: Find length of rectangular lot with perimeter of 86 meters if the length is 7 meters more than the width. (P=2L+2W)
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

lot with perimeter of P=86m
if the length L is 7m more than the width W, then we have
L=W%2B7m
P=2L%2B2W ...plug in given values
86m=2%28W%2B7m%29%2B2W...solve for W
86m=2W%2B14m%2B2W
86m-14m=4W
72m=4W
72m%2F4=W
highlight%28W=18m%29
now find the length
L=18m%2B7m
highlight%28L=25m%29