\(\frac{1}{3}x+\frac{2}{5}x-\frac{2}{5}=0\)
\(\left(\frac{1}{3}+\frac{2}{5}\right).x=\frac{2}{5}\)
\(\frac{11}{15}x=\frac{2}{5}\)
x=6/11
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Ta có:
\(\frac{1}{3}x+\frac{2}{5}\left(x-1\right)=0\)
\(\frac{1}{3}x+\frac{2}{5}x-\frac{2}{5}=0\)
\(x\left(\frac{1}{3}+\frac{2}{5}\right)-\frac{2}{5}=0\)
\(x\frac{11}{15}=\frac{2}{5}\)
\(x=\frac{2}{5}\div\frac{11}{15}\)
\(x=\frac{6}{11}\)
Vậy x = \(\frac{6}{11}\)
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