nilai x dari persamaan 2/3 x + 1 1/3 = 1/3 x - 2 1/3 adalah

[tex] \frac{2}{3}x + \frac{11}{3} = \frac{1}{3}x -\frac{7}{3}

\frac{2}{3}x - \frac{1}{3}x = \frac{11}{3} - \frac{7}{3}

\frac{1}{3}x = \frac{4}{3} 

= \frac{4}{3} : \frac{1}{3}  

= \frac{4}{3} x \frac{3}{1}  

= 4[/tex]