Question

X+X / XxX = 1/3

bạn nào trả lời đúng và nhanh nhất mình tích cho

Answer 1

Trả lời:

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

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

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

\(\Leftrightarrow x=2\times3\)

\(\Leftrightarrow x=6\)

Vậy \(x=6\)

Answer 2

\(\frac{x+x}{xx}=\frac{1}{3}\Leftrightarrow\frac{2x}{x^2}=\frac{1}{3}\)

\(\Leftrightarrow6x=x^2\Leftrightarrow6x-x^2=0\Leftrightarrow x\left(6-x\right)=0\)

\(\Leftrightarrow\orbr{\begin{cases}x=0\\6-x=0\end{cases}\Leftrightarrow\orbr{\begin{cases}x=0\\x=6\end{cases}}}\)

Answer 3

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

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

\(\Leftrightarrow6x=x.x\)

\(\Leftrightarrow6x=x^2\)

\(\Leftrightarrow6x-x^2=0\)

\(\Leftrightarrow x\left(6-x\right)=0\)

\(\Leftrightarrow\orbr{\begin{cases}x=0\left(vl\right)\\6-x=0\end{cases}}\Leftrightarrow\orbr{\begin{cases}x=0\left(vl\right)\\x=6\end{cases}}\)

vậy x=6

Answer 4

                    Bài làm :

Ta có :

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

\(\Leftrightarrow\left(x+x\right)\times3=\left(x\times x\right)\times1\)

\(\Leftrightarrow6\times x=x\times x\)

\(\Rightarrow x=6\)

Chúc bạn học tốt !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 5

Trả lời:

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

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

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

\(\Leftrightarrow x=6\)

Vậy \(x=6\)