Răspunsuri

2014-02-27T17:37:28+02:00
( (x+7)x6-10):4+5 =25
(6x+42-10):4=25-5
(6x+32):4=20
6x+32=20x4
6x+32=80
6x=80-32
6x=48
x=48:6
x=8