Segment Addition Postulate problems?

Hey. Im having some Geomerty homework trouble. The Teacher didnt exactly teach us how to solve or even do The Segment Addition Postulate

Basically solve for X is what its asking.
_________________
HJ=2x+4
JK=3x=3
KH=22
_____________

HJ=5x-3
JK=8X-9
KH=131
_____________

HJ= 2x + (1/3)
JK= 5x + (2/3)
KH= 12x-4
__________________

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Answers:

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lmao i got like peas in a pod assingment

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