Jawabanmu

2014-01-27T20:48:18+07:00
 \frac{2}{5} x -  \frac{4}{15} = 2 +  \frac{1}{2} x
 \frac{2}{5}x  -  \frac{1}{2} x = 2 +  \frac{4}{15}
- \frac{1}{10}x =  \frac{30 +4}{15}
- \frac{1}{10}x =  \frac{34}{15}
-15x = 340
x =  \frac{340}{-15}
x = -22,67