Question

Va rog ajutati ma!!!!

Answer 1

a) 2x=3y=4z=k
2x=k x=k/2
3y=k y=k/3
4z=k z=k/4
X+y-z=7 k/2+k/3-k/4=7
6k+4k-3k=12 7k=84 k=84/7 k=12

X=k/2=6
Y=k/3=4
Z=k/4=3

b) x+z-y =10

2x=4z=3y=k
X=k/2
Z=k/4
Y=k/3

K/2+k/4-k/3=10
6k+3k-4k=120
K=24

X=24/2=12
Y=24/3=8
Z=24/4=6

c) y+z-x=4
3y=4z=2x=k
Y=k/3
Z=k/4
X=k/2
K/3+k/4-k/2=4
4k+3k-6k=48
K=48
X= 48/2=24
Y=48/3=16
Z=48/4=12