Answer :

konrad509
[tex]y-4x=16\\ 12x-y=-24\\\\ y=4x+16\\ 12x-y=-24\\\\ 12x-(4x+16)=-24\\ 12x-4x-16=-24\\ 8x=-8\\ x=-1\\\\ y=4\cdot(-1)+16\\ y=-4+16\\ y=12\\\\ \boxed{x=-1,y=12}[/tex]

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