Răspunsuri

2014-10-29T17:41:03+02:00
A=1/7 *b
a=b/7
a+b=56 
b/7+b=56
b/7+7b/7=56
8b/7=56 ori 7
8b=392
b=49
a=b/7=49/7=7
2014-10-29T17:44:13+02:00
56:8=7 primul numar    7X7=49 l doilea numar