Answer:
x = 3 and JL = 18
Explanation:
JN and NL are equal to each other so set both equations equal to each other
15 - 2x = 4x - 3
solve for x by moving terms to other side
x = 3
plug in 3 for x in JN's equation
JN = 15 - 2(3)
JN = 9
Since JN and NL are equal to each other, JL is just the sum of those two lengths combined
so all you have to do is double JN
9 x 2
is 18
so JL is 18