Răspunsuri

2014-05-06T19:39:41+03:00
X: y= 2
y:z= 2
y= 2z
x=2y= 2 x 2y = 4z
 x + y+ z = 700
4z+ 2z + z= 700
7z= 700
z= 700:7
z= 100
y= 100 x 2 =200
x= 200 x 2 =400