\(x\times\frac{1}{3}+x\times\frac{2}{3}=9\)
\(x\times\left(\frac{1}{3}+\frac{2}{3}\right)=9\)
\(x\times1=9\)
\(x=9\)
\(\frac{1}{3}.x+x.\frac{2}{3}=9\)
\(\Leftrightarrow x.\left(\frac{1}{3}+\frac{2}{3}\right)=9\)
\(\Leftrightarrow x.1=9\)
\(\Leftrightarrow x=9\)
\(\Rightarrow x\times\left(\frac{1}{3}+\frac{2}{3}\right)=9\)
\(\Rightarrow x\times1=9\)
\(\Rightarrow x=9\)
\(\frac{1}{3}\) 13 nhân x + x nhân \(\frac{2}{3}\) = 9
x nhân ( \(\frac{1}{3}\) + \(\frac{2}{3}\) ) = 9
x nhân 1 = 9
x = 9 : 1
x = 9
