Question

[quyen my]

x/5+0.4=1+6/5

Answer 1

[Trí Tiên]

\(\frac{x}{5}+0,4=1+\frac{6}{5}\)

\(\Leftrightarrow\frac{x}{5}+\frac{2}{5}=\frac{5}{5}+\frac{6}{5}\)

\(\Leftrightarrow x+2=5+6\)

\(\Leftrightarrow x+2=11\Leftrightarrow x=9\)

Answer 2

[Huỳnh Quang Sang]

\(\frac{x}{5}+0,4=1+\frac{6}{5}\)

=> \(\frac{x}{5}+\frac{5\cdot0,4}{5}=\frac{11}{5}\)

=> \(\frac{x}{5}+\frac{2}{5}=\frac{11}{5}\)

=> \(\frac{x+2}{5}=\frac{11}{5}\)

=> x = 9