SOLUTION: The length of a rectangle is three more than twice the width. The perimeter is 42 inches. Write an equation that can be used to find the length and width of the rectangle. What is

Question 1010900: The length of a rectangle is three more than twice the width. The perimeter is 42 inches. Write an equation that can be used to find the length and width of the rectangle. What is the width and length of the rectangle? Please help.
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Perimeter P = 2L + 2W = 42.
We also have L = 3 + 2W.
Now substitute that into the first equation and get
2(3 + 2W) + 2W = 42
6 + 4W + 2W = 42
6W + 6 = 42
6W = 36
W = 6 inches
L = 3 + 2(6) = 15 inches
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