Question

 (7- x )/9 = 1/3. 

ghi rõ lời giải cho mình nhé

Answer 1

`(7-x)/9=1/3`

`[7-x]/9=3/9`

`7-x=3`

`x=7-3=4`

Answer 2

\(\dfrac{\left(7-x\right)}{9}=\dfrac{1}{3}\)

\(7-x=\dfrac{1}{3}\times9\)

\(7-x=\dfrac{9}{3}\)

\(7-x=3\)

\(x=7-3\)

`x=4`

Answer 3

`(7-x)/9 = 1/3`

`=> (7-x)/9 = 3/9`

`=> 7 - x = 3`

`=> x = 4`.

Answer 4

7 - x x 3 = 9

7 - x = 9 : 3

7 - x = 3

=>  x = 4

Answer 5

7 - x x 3 = 9

7 - x = 9 / 3

7 - x = 3

     x = 4