If mJK=(7x-39) and mML)=87, find x

The value of X calculeted in the circle is equal to 18.
Parallel lines are basically two straight lines that do not have a point in common. In other words, they are two lines that do not meet, but that necessarily have the same direction.
If two chords of a circle are paralles, then their intercepted arcs are congruent:
[tex]7x-39 = 87\\7x = 87 + 39\\7x = 126\\x = 126/7\\x = 18[/tex]
See more about circle at brainly.com/question/11833983