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$�� 29.5. �� :�) {3^(3x+y)-5^(x-2y)=2, 3^(3x+y)+5^(x-2y)=52};�) {5^(2x-y)=(1/5)^(-1)�625^(3/4)/25, x+3y=3};�) {2^(x+y)-3^(x-y)=7,...$

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29.5. �� :

�) {3^(3x+y)-5^(x-2y)=2, 3^(3x+y)+5^(x-2y)=52};

�) {5^(2x-y)=(1/5)^(-1)�625^(3/4)/25, x+3y=3};

�) {2^(x+y)-3^(x-y)=7, 2^(x+y)+3^(x-y)=25};

�) {2^(x-y)=0,25^(-1)�8^(2/3)/2, x+y=1}.

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