Răspuns :
{a+b;b+7;5}i.p.{4;3;2}
4(a+b)=3(b+7)=5×2=k
4a+4b=3b+21=10
3b+21=10
3b=-11
b=-11/3
4a+4b=10
4a=10-4(-11/3)
4a=10+44/3
4a=(30+44)/3=74/3
a=74/12=37/6
{a+b;b+7;5}i.p.{4;3;2}
4(a+b)=3(b+7)=5×2=k
4a+4b=3b+21=10
3b+21=10
3b=-11
b=-11/3
4a+4b=10
4a=10-4(-11/3)
4a=10+44/3
4a=(30+44)/3=74/3
a=74/12=37/6