Răspunsuri

2014-10-25T17:53:19+03:00
5x+13y+16z=5x+5y+8y+16z=5(x+y)+8(y+2z)=5*8+8*35=40+280=320
2014-10-25T17:56:08+03:00
5x+13y+16z=5x+5y+8y+16z=5(x+y)+8(y+2z)=5*8+8*35=40+280=320