SOLUTION: Find the measure of line segment KL if K is between J and L, JK = 5x-3 and KL=7x+8 and JL=65

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Question 353515: Find the measure of line segment KL if K is between J and L, JK = 5x-3 and KL=7x+8 and JL=65
Answer by robertb(5830) About Me  (Show Source):
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K is between J and L, so JK+%2B+KL+=+JL. Hence,
%285x+-+3%29+%2B+%287x+%2B+8%29+=+65, from the given.
12x+%2B+5+=+65,
12x+=+60,
x+=+60%2F12+=+5. Therefore segment KL is 7%2A5+%2B+8+=+43 units long.