Question

tìm x biết:

\(5\frac{4}{7}:\left\{x:1,3+8,4.\frac{6}{7}.\left[6-\frac{\left(2,3+5:6,25\right).7}{8.0,0125+6,9}\right]\right\}=1\frac{1}{14}\)

Answer 1

\(x:\frac{13}{10}+\frac{42}{5}.\frac{6}{7}.\left(6-\frac{\left(2,3+0,8\right).7}{0,1+6,9}\right)=\frac{39}{7}:\frac{15}{14}=\frac{37}{7}.\frac{14}{15}=\frac{74}{15}\)

\(x.\frac{10}{13}+\frac{36}{7}\left(6-\frac{3,1.7}{7}\right)=\frac{74}{15}\)

\(x.\frac{10}{13}+\frac{36}{7}\left(6-3,1\right)=\frac{74}{15}\)

\(x.\frac{10}{13}+\frac{36}{7}.\frac{29}{10}=\frac{74}{15}\)

\(x.\frac{10}{13}+\frac{522}{35}=\frac{74}{15}\)

\(x.\frac{10}{13}=\frac{74}{15}-\frac{522}{35}=-9\frac{103}{105}\)

\(x=-9\frac{103}{105}:\frac{10}{13}=-12\frac{512}{525}\)

 

 

 

Answer 2

Ngan Nguyen

nhấn "Shift" rồi "\"

Answer 3

x=-12\(\frac{512}{525}\)