Question

\(7/9:(2+3/4x)+5/9=23/27\)

Giúp mk nha .... 

Mk c.ơn 

Answer 1

7/9:(2+3/4x)=23/27-5/9

7/9:(2+3/4x)=8/27

      2+3/4x=7/9:8/27

      2+3/4x=21/8

          3/4x=21/8-2

          3/4x=5/8

              x=5/8:3/4

              x=5/6

Answer 2

\(\frac{7}{9}:\left(2+\frac{3}{4}x\right)+\frac{5}{9}=\frac{23}{27}\)

\(\Rightarrow\left(2+\frac{3}{4}x\right)+\frac{5}{9}=\frac{7}{9}:\frac{23}{27}=\frac{21}{23}\)

\(\Rightarrow2+\frac{3}{4}x=\frac{21}{23}-\frac{5}{9}=\frac{74}{207}\)

\(\Rightarrow\frac{3}{4}x=2-\frac{74}{207}=\frac{340}{207}\)

\(\Rightarrow x=\frac{340}{207}:\frac{3}{4}\)

\(\Rightarrow x=\frac{1360}{621}\)

Answer 3

Sr nãy nhầm >:(

\(\frac{7}{9}:\left(2+\frac{3}{4}x\right)+\frac{5}{9}=\frac{23}{27}\)

\(\Rightarrow\frac{7}{9}:\left(2+\frac{3}{4}x\right)=\frac{23}{27}-\frac{5}{9}=\frac{8}{27}\)

\(\Rightarrow2+\frac{3}{4}x=\frac{7}{9}:\frac{8}{27}=\frac{21}{8}\)

\(\Rightarrow\frac{3}{4}x=\frac{21}{8}-2=\frac{5}{8}\)

\(\Rightarrow x=\frac{5}{8}:\frac{3}{4}\)

\(\Rightarrow x=\frac{5}{6}\)