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8x+y-6=0 dodajemy stronami
5x-10=0
5x=10
x=2
8x + y - 6 = 0
-y-3x=4
+ y+8x=6
___________ dodajesz dwie strony
5x=10/ ÷5
x=2
y+8×2=6
y=6-16
y=-10
x=2
5x=10
x=2
-6-y-4=0
-y=4+6
-y=10/-1
y=-10