Question

-2/5+5/6.x=-4/15 Tìm x thuộc số hữu ti

Answer 1

\(\Leftrightarrow\dfrac{5}{6}x=-\dfrac{4}{15}+\dfrac{2}{5}=\dfrac{2}{15}\\ \Leftrightarrow x=\dfrac{2}{15}\cdot\dfrac{6}{5}=\dfrac{4}{25}\)

Answer 2

Giúp vs ạ đúng mình tích cho ạ 

Answer 3

\(-\dfrac{2}{5}+\dfrac{5}{6}x=-\dfrac{4}{15}\)

\(\Rightarrow\dfrac{5}{6}x=-\dfrac{4}{15}+\dfrac{2}{5}=\dfrac{2}{15}\)

\(\Rightarrow x=\dfrac{2}{15}:\dfrac{5}{6}=\dfrac{4}{25}\)