Question

sad\(s\\ \)

Answer 1

Đề là gì hả bạn ?

Answer 2

\(\dfrac{2}{7}\)= \(\dfrac{8}{3.x}\)

=> 2.(3.x) = 7.8

=> 6.2x = 56

=> 2x = \(\dfrac{28}{3}\)

=> x = \(\dfrac{14}{3}\)

Chúc bạn học tốt !

Answer 3

\(\dfrac{2}{7}\) = \(\dfrac{8}{3.x}\)

\(\Rightarrow\) 2.3.\(x\) = 8.7

\(\Rightarrow\) 6.\(x\) = 56

\(\Rightarrow\) \(x\) = \(\dfrac{56}{6}\) = \(\dfrac{28}{3}\)

Vậy \(x\)= \(\dfrac{28}{3}\).

Học tốt toán nhé !

Answer 4

\(\dfrac{2}{7}=\dfrac{8}{3x}\\ \Leftrightarrow2.3x=8.7\\ \Rightarrow6x=56\\ \Rightarrow x=56:6=\dfrac{28}{3}\)