Question

Tìm x, biết: 1/2=3x+1/3x

Answer 1

Answer 2

\(\dfrac{1}{2}=3x+\dfrac{1}{3}x\)

\(3x+\dfrac{1}{3}x=\dfrac{1}{2}\)

\(\dfrac{10}{3}x=\dfrac{1}{2}\)

\(x=\dfrac{1}{2}:\dfrac{10}{3}\)

\(x=\dfrac{3}{20}\)

vậy \(x=\dfrac{3}{20}\)

Answer 3

`ĐKXĐ: x ne 0`

`1/2  = (3x+1)/x`

`=>3x = 2(3x+1)`

`=>3x = 6x + 2`

`=>3x-6x=2`

`=>-2x=2`

`=>x=-1`

Vậy `x=-1`

Answer 4

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