Răspunsuri

2014-11-17T19:24:27+02:00
(7873-5784)-(x+x)=1059
2089-2x=1059
2x=2089-1059
2x=1030
x=515
2014-11-17T19:31:10+02:00
(7873-x)-(5784-x)=1059
7873-x-5784-x=1059
2089-2x=1059
-2x=1059-2089
-2x=-1030   |:(-2)
  x=-515