Yongyuth was a 3 times of age the son, 14 years, Yongyuth will last twice the age of the son. At present, the individual is much
son age is x
Yongyuth age is 3x
the son again 14 years age is x 14
.Yongyuth age is 3x 14
set equation from this sentence C > > again 14 years, Yongyuth will last. สองเท่าของ age of the son 3x
! 14 = 2 (x 14)
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