zaidan123 zaidan123

18-09-2020
Mathematics

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if 3x+k 2x+9 x+13 are three consecutive terms of an ap fine k

Respuesta :

ChoiSungHyun ChoiSungHyun

18-09-2020

Step-by-step explanation:

Since there are in arithmetic progression, 2(2x + 9) = (3x + k) + (x + 13).

=> 4x + 18 = 4x + 13 + k

Hence k = 5.

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