\(\frac{-4}{5}-\left|\frac{3}{4}-1\frac{1}{8}\right|=\frac{7}{20}-x+\frac{3}{-40}\)
\(\frac{-4}{5}-\left|\frac{6}{8}-\frac{9}{8}\right|=\frac{14}{40}+\frac{-3}{40}-x\)
\(\frac{-4}{5}-\frac{-3}{8}=\frac{11}{40}-x\)
\(\frac{-32}{40}+\frac{15}{40}-\frac{11}{40}=-x\)
\(-\frac{7}{10}=-x\)
\(x=-\frac{7}{10}\)
Lớp 9 nhìn lại cái này cx khó hiểu ra phết :))
\(-\frac{4}{5}|-\frac{3}{8}|=\frac{7}{20}-x+-\frac{3}{40}\)
\(\frac{7}{20}-x+-\frac{3}{40}=-\frac{4}{5}-\frac{3}{8}\left(|-\frac{3}{8}|=\frac{3}{8}\right)\)
\(\frac{7}{20}-x+-\frac{3}{40}=-\frac{47}{40}\)
\(\frac{7}{20}-x=-\frac{47}{40}--\frac{3}{40}\)
\(\frac{7}{20}-x=-\frac{11}{10}\)
\(x=\frac{7}{20}--\frac{11}{10}\)
\(x=\frac{29}{20}\)
Vậy x = \(\frac{29}{20}\)