Question

1 - 2/3 ( x - 1/4 ) = 1/3 (2x - 1)

tìm x 

(nhớ trình bài giúp mình nha)

Answer 1

1 - 2/3 (x - 1/4)  = 1/3 (2x - 1)

1/3 (x - 1/4) = 1/3 (2x - 1)

(2x - 1) ( x - 1/4) = 1/3 :1/3

(2x - 1) (x - 1/4) = 1

=> 2x - 1 = 1 => 2x = 2 => x = 1

    x - 1/4 = 1 => x = 5/4

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Answer 2

1 - 2/3 (x - 1/4) = 1/3 (2x - 1) 1/3 (x - 1/4)

                       = 1/3 (2x - 1) (2x - 1) ( x - 1/4)

                       = 1/3 :1/3 (2x - 1) (x - 1/4) = 1

    => 2x - 1 = 1

=> 2x = 2

 = > x = 1

x - 1/4 = 1

=> x = 5/4

Answer 3

1 - 2/3 (x - 1/4) = 1/3 (2x - 1) 1/3 (x - 1/4) = 1/3 (2x - 1) (2x - 1) ( x - 1/4) = 1/3 :1/3 (2x - 1) (x - 1/4) = 1 => 2x - 1 = 1 => 2x = 2 = > x = 1 x - 1/4 = 1 => x = 5/4