Răspunsuri

2014-09-07T15:07:29+03:00
1,2x=4(0,3x-1) + 6
 \frac{12}{10} x =  \frac{12}{10} x - 4 + 6
 \frac{12}{10} x =  \frac{12}{10} x - 10
S= Ф ....