Răspunsuri

2014-11-16T12:30:10+02:00
A+b=63
a:b=2, r=9
a=2b+9
a+b=63
2b+9+b=63
3b=54
b=18
a=2*18+9
a=45
2014-11-16T12:36:15+02:00
A + b = 63
a : b = 2 rest 9
a = 2b + 9
2b + 9 + b = 63
3b = 54
b = 54 : 3
b = 18
a = 63 - 18
a = 45