If the y would be equal to 0, everything would then just depend if you add or subtract the x:
[tex]y-x=-3\\\\y+x=3\\\\y= 0\\x=3\\\\then:\\\\0-3=3\\and\\0+3=3[/tex]
Now the first answer could be correct for:
[tex]y-x=-3\\because\ if\\\\y=-3 \ and \ x=0 \ then\\-3-0=-3[/tex]
However, this answer is not correct for the other equation. the same true for all the other answers except (0,3)
ps. could you please mark me Brainlyest if you can? I kinda need it to help maintain and reach my next rank... thx