Răspuns :
ma=a+b+c/3=8=>a+b+c=24
ma=b+c/2=10,5=>b+c=10,5*2=21
Cat e a ?
24-21=3( a )
Cat e c ?
3*4=12 c
Cat e b?
21-12=9 b
SPER CA TE-AM AJUTAT
ma=b+c/2=10,5=>b+c=10,5*2=21
Cat e a ?
24-21=3( a )
Cat e c ?
3*4=12 c
Cat e b?
21-12=9 b
SPER CA TE-AM AJUTAT
m.a.=(a+b+c):3=8 | x3
a+b+c=24
m.a.=(b+c):2=10,5 | x2
b+c=21 => a+21=24 => a=3
4xa=c =>4x3=12=c => b+12=21 =>b=9
a+b+c=24
m.a.=(b+c):2=10,5 | x2
b+c=21 => a+21=24 => a=3
4xa=c =>4x3=12=c => b+12=21 =>b=9