Angle LNO is 40 degress since angle KLN is x-y and y is 2/7 of x which means 100 is equal to 5/7 of x. You can divide 100 by 5 which is 20 and 20 is 1/7 of x. you multiply 20 by 2 so 2/7 of x is 40 degrees.
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