X+y-z=3 x+y+z=9 x-u+y=5 z+x-u=4

Question

X+y-z=3
x+y+z=9
x-u+y=5
z+x-u=4

Answer 1

Х-3
у-3
z-3
u-1
dghbvbnsnjsshhsbsbwbwnnwnwaha

Comments

нет, т.к. последний пример z+x-u=4 (3+3-1=5)