Question

Tím x biết 

-x-2/3=-6/7

Giúp mình nhanh nha mình sẽ cho like 

Answer 1

-x-2/3=-6/7

-x = -6/7 + 2/3

-x = -4/21

Vậy x = -4/21

Answer 2

-x-2/3=-6/7

<=>-x=2/3-6/7

<=>x=4/21

Answer 3

\(-x-\frac{2}{3}=-\frac{6}{7}\)

\(-x=-\frac{6}{7}+\frac{2}{3}\)

\(-x=\frac{-18}{21}+\frac{14}{21}\)

\(-x=\frac{-4}{21}\)

\(\Rightarrow x=\frac{4}{21}\)

Vậy \(x=\frac{4}{21}\)

Answer 4

\(-x-\frac{2}{3}=\frac{-6}{7}\)

\(\Rightarrow-x=\frac{-6}{7}+\frac{2}{3}\)

\(\Rightarrow-x=\frac{-4}{21}\)

\(\Rightarrow x=\frac{4}{21}\)

Vậy  \(x=\frac{4}{21}\)

_Chúc bạn học tốt_

Answer 5

\(-x-\frac{2}{3}=-\frac{6}{7}\)

\(\Leftrightarrow-x=-\frac{6}{7}+\frac{2}{3}\)

\(\Leftrightarrow-x=-\frac{4}{21}\)

\(\Leftrightarrow x=\frac{4}{21}\)