tìm x biếtb,1/10(x-3/25)=1/50
Giải thích
Lời giải:
\[\frac{1}{{10}} - \left( {x - \frac{3}{{25}}} \right) = \frac{1}{{50}}\]
\[x - \frac{3}{{25}} = \frac{1}{{10}} - \frac{1}{{50}}\]
\[x - \frac{3}{{25}} = \frac{2}{{25}}\]
\[x = \frac{2}{{25}} + \frac{3}{{25}}\]
\[x = \frac{1}{5}\]
Vậy \[x = \frac{1}{5}\].