3 1/3 x + 16 1/4 = – 13, 25 (2 4/5 x – 50): 2/3 = 51

1 bình luận về “3 1/3 x + 16 1/4 = – 13, 25 (2 4/5 x – 50): 2/3 = 51”

1. 3 1/3x + 16 1/4 = – 13,25

   => 10/3x + 65/4 = (-53)/4

   => 10/3x = (-53)/4 – 65/4

   => 10/3x = (-59)/2

   => x = (-59)/2 : 10/3

   => x = (-59)/2 * 3/10

   => x = (-177)/20

   Vậy x = (-177)/20

   ———-

   (2 4/5x – 50) : 2/3 = 51

   => 14/5x – 50 = 51 * 2/3

   => 14/5x – 50 = 34

   => 14/5x = 34 + 50

   => 14/5x = 84

   => x = 84 : 14/5

   => x = 84 * 5/14

   => x = 30

   Vậy x = 30

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