Răspunsuri

2014-09-06T16:03:45+03:00
5y:24=13<=>5y=312<=>y=312/5<=>y=62,4
239:(7z-3)=59<=>7z-3=239:59<=>7z-3=4<=>7z=7<=>z=1
nu..."echivalent"<=>....
asa se citeste
Ok... si / ce inseamna ???
??
cred ca se rezulta mai departe..cam asa