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Determine-all-positive-integers-a-b-c-d-x-y-z-t-and-a-b-c-d-which-satisfy-a-b-c-td-b-c-d-xa-c-d-a-yb-d-a-b-zc-




Question Number 155206 by mathdanisur last updated on 26/Sep/21
Determine all positive integers  a;b;c;d;x;y;z;t  and  a≠b≠c≠d  which satisfy  a+b+c=td ;  b+c+d=xa ; c+d+a=yb ; d+a+b=zc
$$\mathrm{Determine}\:\mathrm{all}\:\mathrm{positive}\:\mathrm{integers} \\ $$$$\mathrm{a};\mathrm{b};\mathrm{c};\mathrm{d};\mathrm{x};\mathrm{y};\mathrm{z};\mathrm{t}\:\:\mathrm{and}\:\:\mathrm{a}\neq\mathrm{b}\neq\mathrm{c}\neq\mathrm{d} \\ $$$$\mathrm{which}\:\mathrm{satisfy}\:\:\mathrm{a}+\mathrm{b}+\mathrm{c}=\mathrm{td}\:; \\ $$$$\mathrm{b}+\mathrm{c}+\mathrm{d}=\mathrm{xa}\:;\:\mathrm{c}+\mathrm{d}+\mathrm{a}=\mathrm{yb}\:;\:\mathrm{d}+\mathrm{a}+\mathrm{b}=\mathrm{zc} \\ $$

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