Question

tìm x=2 cách khác nhau 

  26 - [ x - 7 ] = 0

Answer 1

Cách 1 :

26 - ( x - 7 ) = 0

( x - 7 ) = 26 - 0

x - 7 = 26

x = 26 + 7

x = 33

Cách 2 :

26 - ( x - 7 ) = 0

26 - x - 7 = 0 

26 + 7 - x = 0

33 - x = 0

x = 33 - 0

x = 33

Answer 2

26 - | x-7 | =0

|x-7| = 26 

Th1: x-7 = -26

x= -19

Th2: x-7 = 26 

x= 33

Vậy x= -19 và x= 33

C2 : ko bt.

Answer 3

Cách 1 :

26 - [ x - 7 ] = 0

=> 26 - x + 7 = 0

=> 33 - x = 0

=> x = 33

Cách 2

26 - [x - 7] = 0

=> x - 7 =26

=> x = 33

Answer 4

C1 :

26 - (x - 7) = 0

        x - 7 = 26 - 0

        x - 7 = 26

        x      = 26 + 7

        x      = 33

C2 :

26 - (x - 7) = 0

26 - x + 7 = 0

26 + 7 - x = 0

33 - x = 0

       x = 0 + 33

       x = 33

Answer 5

26-(x-7)=0

(x-7)=26-0

x-7=26

x   =26+7

x   =33

Answer 6

\(C1:26-\left(x-7\right)=0\)

\(\Rightarrow x-7=26\)

\(\Rightarrow x=33\)

\(C2:26-\left(x-7\right)=0\)

\(\Rightarrow26-x+7=0\)

\(\Rightarrow33-x=0\)

\(\Rightarrow x=33\)

Answer 7

26 - [ x - 7 ] = 0

       [ x - 7 ] = 26 - 0

       [ x - 7 ] =   26

         x        = 26 + 7

         x        =     33