Question

Tìm x :

\(x\times\frac{1}{5}+\frac{1}{5}\times x-x\times\frac{1}{5}=\frac{1}{5}\)

Answer 1

\(x\times\frac{1}{5}+\frac{1}{5}\times x-x\times\frac{1}{5}=\frac{1}{5}\)

           \(x\times\left(\frac{1}{5}+\frac{1}{5}-\frac{1}{5}\right)=\frac{1}{5}\)

                                      \(x\times\frac{1}{5}=\frac{1}{5}\)

                                                \(x=\frac{1}{5}:\frac{1}{5}\)

                                                 \(x=1\)

Vậy x = 1

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Answer 2

x × 1/5 + 1/5 × x − x × 1/5 = 1/5

 x × (1/5 + 1/5 − 1/5) = 1/5

 x × 1/5 = 1/5

 x = 1/5 : 1/5

 x = 1

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Answer 3

Xx1/5+1/5xX-Xx1/5=1/5

Xx(1/5+1/5-1/5)=1/5

Xx1/5=1/5

X=1/5:1/5

X=1

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