Question

1 + 1 / x = 3 tìm x

Answer 1

\(1+\frac{1}{x}=3\)

\(\Rightarrow\frac{1+x}{x}=3\)

\(\Rightarrow1+x=3x\)

\(\Rightarrow2x=2\)

\(\Rightarrow x=1\)

Vậy \(x=1\)

Answer 2

\(1+\frac{1}{x}=3\)

\(\Leftrightarrow\frac{1}{x}=3-2\)

\(\Leftrightarrow\frac{1}{x}=1\)

\(\Leftrightarrow x=1\)

Vậy x=1

Answer 3

1+\(\frac{1}{x}\)= 3

<=> \(\frac{1}{x}\) = 3-1

<=> \(\frac{1}{x}\) =2

<=> x = \(\frac{1}{2}\)

Vậy x = \(\frac{1}{2}\)

Answer 4

1 + \(\frac{1}{x}\) = 3

=> \(\frac{x+1}{x}\) = 3

=> x + 1 = 3x

=> x - 3x = -1

=> -2x = -1

=> x = \(\frac{-1}{-2}\) = \(\frac{1}{2}\)

Vậy x = \(\frac{1}{2}\) thì 1 + \(\frac{1}{x}\) = 3

XONG !!

Answer 5

Sửa lại:

\(1+\frac{1}{x}=3\)

\(\Rightarrow\frac{1+x}{x}=3\)

\(\Rightarrow1+x=3x\)

\(\Rightarrow2x=1\)

\(\Rightarrow x=\frac{1}{2}\)

Vậy \(x=\frac{1}{2}\)

Answer 6

\(1+\frac{1}{x}=3\)

\(\Leftrightarrow\frac{1}{x}=3-1\)

\(\Leftrightarrow\frac{1}{x}=2\)

\(\Leftrightarrow x=\frac{1}{2}\)

Vậy \(x=\frac{1}{2}\) để \(1+\frac{1}{x}=3\)

Answer 7

\(\frac{1}{2}\) nha bạn

Thấy ở dưới nhìu cách giải rùi nên mk ko giải tườm tật nữa nha