Răspuns :

Răspuns:

6x=8y=12z=k

x=k/6        y=k/8         z=k/12

8*k/6-9*k/8+7*k/12=380

4k/3-9k/8+7k/12=380

32k/24-27k/24+14k/24=380

32k-27k+14k/24=380

19k/24=380

19k=24*380

k=480

x=480*6=2880

y=480*8=3840

z=480*12=5760

Explicație pas cu pas:

/-impartire

*-inmultire

k-coeficient de proportionalitate