Răspuns :
Răspuns:
Explicație pas cu pas:
x-y=2 x=y+2
x+y=8 y+2+y=8 2y=6 y=3 x=5
x+y=8 =>x=8-y =>x=8-y =>x=8-y
x-y=2 x-y=2 8-y-y=2 -2y=2-8
=>x=8-y =>x=8-y =>x=8-y
-2y=-6|•(-1) 2y=6 y=3
=>x=8-3 =>x=5
y=3 y=3
=>S={5;3}
Răspuns:
Explicație pas cu pas:
x-y=2 x=y+2
x+y=8 y+2+y=8 2y=6 y=3 x=5
x+y=8 =>x=8-y =>x=8-y =>x=8-y
x-y=2 x-y=2 8-y-y=2 -2y=2-8
=>x=8-y =>x=8-y =>x=8-y
-2y=-6|•(-1) 2y=6 y=3
=>x=8-3 =>x=5
y=3 y=3
=>S={5;3}