2 câu trả lời
$\text{ x : 6 = 9 }$
=> $\text{ x = 9 x 6 }$
=> $\text{ x = 54}$
$\text{ x : 9=4+3}$
=> $\text{ x:9=7}$
=> $\text{ x=7 x 9 }$
=> $\text { x = 63}$
$\text{ x : 6 = 9 }$
=> $\text{ x = 9 x 6 }$
=> $\text{ x = 54}$
$\text{ x : 9=4+3}$
=> $\text{ x:9=7}$
=> $\text{ x=7 x 9 }$
=> $\text { x = 63}$