\(\frac{7}{9}:\left(1+\frac{3}{4}x\right)+\frac{5}{9}=\frac{23}{27}\)

\(\frac{7}{9}:\left(1+\frac{3}{4}x\right)=\frac{8}{27}\)

\(\left(1+\frac{3}{4}x\right)=\frac{21}{8}\)

\(\frac{3}{4}x=\frac{13}{8}\)

\(x=\frac{13}{8}:\frac{3}{4}\)

\(x=\frac{13}{6}\)

Vậy \(x=\frac{13}{6}\)

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

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

\(2+\frac{3}{4}x=\frac{7}{9}:\frac{8}{27}=\frac{21}{8}\)

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

\(x=\frac{5}{8}:\frac{3}{4}=\frac{5}{6}\)

Vậy x=5/6

Lấy máy tính bấm là đc mà bn

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

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

\(\frac{7}{9}:\left(2+\frac{3}{4}.x\right)=\frac{8}{27}\)

\(2+\frac{3}{4}.x=\frac{7}{9}:\frac{8}{27}\)

\(2+\frac{3}{4}.x=\frac{21}{8}\)

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

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

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

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

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

\(\Leftrightarrow\frac{7}{9}:\frac{5}{4x}=\frac{23}{27}-\frac{5}{9}\)

\(\Leftrightarrow\frac{7}{9}:\frac{5}{4x}=\frac{8}{27}\)

\(\Leftrightarrow\frac{5}{4x}=\frac{7}{9}:\frac{8}{27}\)

\(\Leftrightarrow\frac{5}{4x}=\frac{21}{8}\)

\(\Leftrightarrow4x=\frac{5.8}{21}\)

\(\Leftrightarrow4x=\frac{40}{21}\)

\(\Leftrightarrow x=\frac{40}{21}:4\)

\(\Leftrightarrow x=\frac{10}{21}\)

Vậy x = \(\frac{10}{21}\)

_Chúc bạn học tốt_

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

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

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

                 \(2+\frac{3}{4x}=\frac{7}{9}:\frac{8}{27}\)

                  \(2+\frac{3}{4x}=\frac{21}{8}\)

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

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

    Vì \(\frac{3}{4x}=\frac{5}{8}\)nên \(3.8=4x.5\)

                                        \(24=4x.5\)

                                         \(24=20x\)

                                            \(x=1,2\)

a,x.3\(\dfrac{1}{4}\)+(\(\dfrac{-7}{6}\)).x-1\(\dfrac{2}{3}\)=\(\dfrac{5}{12}\)

\(\Leftrightarrow\)\(\dfrac{13}{4}\)x+(\(\dfrac{-7}{6}\))x-\(\dfrac{5}{3}\)=\(\dfrac{5}{12}\)

\(\Leftrightarrow\)\(\dfrac{13}{4}\)x+(\(\dfrac{-7}{6}\))x=\(\dfrac{25}{12}\)

\(\Leftrightarrow\)\(\dfrac{25}{12}\)x=\(\dfrac{25}{12}\)

\(\Leftrightarrow\)x=1

Vậy x=1

b,\(\dfrac{2}{5}\)+\(\dfrac{3}{5}\).(3x-3,7)=\(\dfrac{-53}{10}\)

\(\Leftrightarrow\)\(\dfrac{3}{5}\).(3x-3,7)=\(\dfrac{-53}{10}\)-\(\dfrac{2}{5}\)

\(\Leftrightarrow\)\(\dfrac{9}{5}\)x-\(\dfrac{111}{50}\)=\(\dfrac{-57}{10}\)

\(\Leftrightarrow\)\(\dfrac{9}{5}\)x=\(\dfrac{-87}{25}\)

\(\Leftrightarrow\)x=\(\dfrac{-29}{15}\)

Vậy x=\(\dfrac{-29}{15}\)

c,\(\dfrac{7}{9}\):(2+\(\dfrac{3}{4}\)x)+\(\dfrac{5}{9}\)=\(\dfrac{23}{27}\)

\(\Leftrightarrow\)\(\dfrac{7}{9}\):(2+\(\dfrac{3}{4}\)x)=\(\dfrac{8}{27}\)

\(\Leftrightarrow\)\(\dfrac{7}{18}\)+\(\dfrac{28}{27}\)x=\(\dfrac{8}{27}\)

\(\Leftrightarrow\)\(\dfrac{28}{27}\)x=\(\dfrac{-5}{54}\)

\(\Leftrightarrow\)x=\(\dfrac{-5}{56}\)

Vậy x=\(\dfrac{-5}{56}\)

a) \(\frac{2}{5}+\frac{3}{5}.\left(3x-3,7\right)=\frac{-53}{10}\)

=> \(\frac{3}{5}.\left(3x-3,7\right)=\frac{-53}{10}-\frac{2}{5}\)

=> \(\frac{3}{5}.\left(3x-3,7\right)=\frac{-57}{10}\)

=> \(\left(3x-3,7\right)=\frac{-19}{5}\)

=>\(3x=\frac{-19}{5}+\frac{37}{10}\)

=>\(3x=\frac{-1}{10}\)

=>\(x=\frac{-1}{30}\)

Ko biết đúng hay sai!!?

a,x=-6 x=-12

b,x=-33

c,x= 2015 x= 2016

a) \(x=-\frac{1}{2}\)

b) \(x=-\frac{29}{15}\)

c) \(x=\frac{5}{6}\)

**** cho mình nhé

a) -1/2

b) -29/15

c) 5/6

****

4.x=29/12;-29/12

Câu cuối ban viết rõ lên nhé