Question

Câu 6 , 7 và 8

Answer 1

\(6a)x+\dfrac{3}{4}=\dfrac{4}{5}\) 

\(x=\dfrac{4}{5}-\dfrac{3}{4}\) 

\(x=\dfrac{1}{20}\) 

\(b)x-\dfrac{1}{2}=\dfrac{5}{8}\) 

\(x=\dfrac{5}{8}+\dfrac{1}{2}\) 

\(x=\dfrac{9}{8}\) 

\(c)x.\dfrac{5}{6}=\dfrac{4}{5}\) 

\(x=\dfrac{4}{5}:\dfrac{5}{6}\) 

\(x=\dfrac{24}{25}\) 

\(d)x:\dfrac{5}{8}=\dfrac{1}{25}\) 

\(x=\dfrac{1}{25}.\dfrac{5}{8}\) 

\(x=\dfrac{5}{200}=\dfrac{1}{40}\)

Answer 2

\(7.0,123;0,132;0,213;0,312;0,321\)