Question

(6x - 39) : 3 = 21

 

Answer 1

    (6x - 39) : 3 = 21

\(\Rightarrow\) 2x - 13 = 21

\(\Rightarrow\) 2x = 34

\(\Rightarrow\) x = 17

Vậy x = 17

Answer 2

Answer 3

\(\left(6x-39\right):3=21\\ 6x-39=63\\ 6x=102\\ x=17\)

 

Answer 4

(6x - 39) : 3 = 21

 2x - 13 = 21 

 2x = 34

 x = 17

Vậy x = 17

Answer 5

( 6 x - 39 ) : 3 = 21

( 6 x - 39 ) = 21 . 3

6 x - 39 = 63 

6 x = 63 + 39

6 x = 102

   x = 102 : 6

   x = 17 

Chúc bạn học tốt nhé !

Answer 6

x=17