Răspunsuri

2014-09-04T13:12:35+03:00
A + b = 64
a - b = 48
a : 7 = b
a  ___/___/___/___/___/___/___/
b  ___/
a = 7b
7b + b = 64
8b = 64
b = 8
a = 7 * 8
a = 56
sau
64 : 8 = 8
b = 8
a = 7 * 8
a = 56
2 3 2