L = length and W = width
W = 8L - 2
Perimeter = 2(L + W) = 68 => L + W = 34
Substitute: L + 8L -2 = 34 => 9L = 36
You should be able to finish it from here!
L = length and W = width
W = 8L - 2
Perimeter = 2(L + W) = 68 => L + W = 34
Substitute: L + 8L -2 = 34 => 9L = 36
You should be able to finish it from here!
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