Answer:
30
Step-by-step explanation:
JL comprises of JK & KL. So ,
JL = JK + KL
Here the length of :-
KL= 9x + 3
JL = 55
JK = 7x + 4
So putting all the values above gives ,
7x + 4 + 9x + 3 = 55
=> 16x + 7 = 55
=> 16x = 55 - 7
= 48
=> x = 48/16 = 3
Using the value of x in finding the length of KL ,
KL = 9 × 3 + 3 = 27 + 3 = 30
