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5 votes
PLEASE HELP !!!!

Using the segment addition postulate, find the value of x.

JK = 3x - 4
KL = 5x + 6
JL = 9x - 8


A. 4
b. 10
c. 18
d. 2

User Barrymac
by
4.2k points

1 Answer

3 votes

Answer: 10

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Work Shown:

JK + KL = JL

(3x-4) + (5x+6) = 9x-8

(3x+5x) + (-4+6) = 9x-8

8x+2 = 9x-8

8x-9x = -8-2

-x = -10

x = 10

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Check:

  • JK = 3x - 4 = 3(10)-4 = 26
  • KL = 5x + 6 = 5(10) + 6 = 56
  • JL = 9x - 8 = 9(10) - 8 = 82

JK + KL = 26 + 56 = 82 = JL

Therefore, the answer is confirmed.