Răspunsuri

2014-11-19T17:58:20+02:00
2(x-6+8-x)=14
2x-12+16=14
2x=14+12-16
2x=26-16
2x=16
x=8
2014-11-19T17:58:53+02:00
X-12+16-2x=14
-x=14-4
x=-10