Question

x : 25 - [ x + 1,85 ] : 3 = 7

 Tìm x

Answer 1

Ta có: x : 25 - [ x + 1,85 ] : 3 = 7

=> 25 - [ x + 1,85 ] = 7 x 3

=> 25 - [ x + 1,85 ] = 21

=>        [ x + 1,85 ] = 25 - 21

=>        x + 1,85 = 4

=> x = 4 - 1,85

=> x = 2,15

Answer 2

Ta có: x : 25 - [ x + 1,85 ] : 3 = 7 => 25 - [ x + 1,85 ] = 7 x 3 => 25 - [ x + 1,85 ] = 21 => [ x + 1,85 ] = 25 - 21 => x + 1,85 = 4 => x = 4 - 1,85 => x = 2,15

Answer 3

Ta có: x : 25 - [ x + 1,85 ] : 3 = 7 => 25 - [ x + 1,85 ] = 7 x 3 => 25 - [ x + 1,85 ] = 21 => [ x + 1,85 ] = 25 - 21 => x + 1,85 = 4 => x = 4 - 1,85 => x = 2,15