Răspunsuri

2014-03-16T13:39:16+02:00
A+(a+2)+(a+4)=a+70
a+a+a-a=70-6
2a=70-6
a=32
b=a+2=34
c=a+4=36
proba:
32+34+36=102
suma=102=a+70
a=102-70=32
7 4 7
  • Utilizator Brainly
2014-03-16T14:58:44+02:00
X+x+2+x+4=x+70
3x+6=x+70
3x-x=70-6
2x=64
x=64:2
x=32
y=32+2
y=34
z=32+4
z=36
7 4 7