Răspunsuri

2014-03-03T18:58:17+02:00
X:z=5=>x=5z
x-z=648=>x=648+z
5z=648+z
5z-z=648
4z=648=>z=648:4=162
x=648+162=810
  • Utilizator Brainly
2014-03-03T19:02:12+02:00
X:z=5
z-x=648
x=zx5
x=5z ⇒inlocuim pe x in z-x=648
z-5z=648
4z=648
z=648:4
z=162
x=5x162
x=810
Verificare : 810:162=5
x:z=5
z-x=648
x=zx5
x=5z ⇒inlocuim pe x in z-x=648
z-5z=648
4z=648
z=648:4
z=162
x=5x162
x=81o sper ca am ajutat