Tìm x bt : 2/7 × (3/4 – x)=-1/14

2 bình luận về “Tìm x bt : 2/7 × (3/4 – x)=-1/14”

1. 2/7xx (3/4 – x)=-1/14

   (3/4 – x)=-1/14:2/7

   (3/4 – x)=-1/14 . 7/2

   3/4 – x=-1/4

   x=3/4 -(-1)/4

   x=1

   Vậy x=1

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2. 2/7 xx ( 3/4 – x ) = (-1)/14

   => 3/4 – x = (-1)/14 : 2/7

   => 3/4 – x = (-1)/4

   => x = 3/4 – (-1)/4

   => x = 1

   @ma

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