Question

16 : (3/5 x X + 8 / 21 +9 = 7/10

Answer 1

tính hộ mình nhé làm thế nào 

Answer 2

\(16:\left(\frac{3}{5}x+\frac{8}{21}+9\right)=\frac{7}{10}\)

\(\frac{3}{5}x+\frac{8}{21}+9=\frac{160}{7}\)

\(\frac{3}{5}x=\frac{283}{21}\)

\(x=\frac{1415}{63}\)

Vậy ...

Answer 3

giải ra hỗn số nhé bạn

Answer 4

=\(=22\frac{29}{63}\)

Answer 5

làm thế nào ra 474 2/3

Answer 6

chỗ nào hả em 

Answer 7

\(16:\left[\frac{3}{5}\times x+\frac{8}{21}+9\right]=\frac{7}{10}\)

\(\Rightarrow\left[\frac{3}{5}\times x+\frac{8}{21}+9\right]=16:\frac{7}{10}\)

\(\Rightarrow\left[\frac{3}{5}\times x+\frac{8}{21}+9\right]=16\times\frac{10}{7}\)

\(\Rightarrow\frac{3}{5}\times x+\frac{8}{21}+9=\frac{160}{7}\)

\(\Rightarrow\frac{3}{5}\times x=\frac{160}{7}-9-\frac{8}{21}\)

\(\Rightarrow\frac{3}{5}\times x=\frac{283}{21}\)

\(\Rightarrow x=\frac{283}{21}:\frac{3}{5}=\frac{283}{21}\cdot\frac{5}{3}=\frac{1415}{63}=22\frac{29}{63}\)