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Question

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1/3*x+2/5*(x-1)=0

Thắng Nguyễn · Accepted Answer

$\Leftrightarrow\frac{1}{3}x+\frac{2}{5}x-\frac{2}{5}\left(-1\right)=0$

$\Rightarrow\frac{1}{3}x+\frac{2}{5}x-\frac{-2}{5}=0$

$\Leftrightarrow x\left(\frac{1}{3}+\frac{2}{5}\right)=\frac{2}{5}$

$\Rightarrow x\times\frac{11}{15}=\frac{2}{5}$

$\Rightarrow x=\frac{6}{11}$

Câu trả lời:

$\Leftrightarrow\frac{1}{3}x+\frac{2}{5}x-\frac{2}{5}\left(-1\right)=0$

$\Rightarrow\frac{1}{3}x+\frac{2}{5}x-\frac{-2}{5}=0$

$\Leftrightarrow x\left(\frac{1}{3}+\frac{2}{5}\right)=\frac{2}{5}$

$\Rightarrow x\times\frac{11}{15}=\frac{2}{5}$

$\Rightarrow x=\frac{6}{11}$