Răspunsuri

2014-10-06T15:56:47+03:00
2014-10-06T15:58:31+03:00
3(1-2x)+8=12

3-6x+8=12
11- 6x=12
-6x=12-11
-6x=1
x=1 \\ -6
x= 1 \\ 6