8z - 17 + 5z + 37 = 17z - 4
13z + 20 = 17z - 4
subtract 13z from both sides
20 = 4z - 4
add 4 to both sides
24 = 4z
divide by 4 on both sides
6 = z
JK = 17(6) - 4
The length of JK = 106
The length of JP = 8(6) - 17 = 31
The length of PK = 5(6) + 37 = 67