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.