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$�� 29.2. �� :�) {4x=y+3, 7^(y-3x+4)=7^(y-5x+3)+6};�) {x=3y, log_(1/7)(y+x)+log_(1/7)(x-2y-1)=log_(1/7)(8/(y-1))};�) {3y=x-2,...$

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29.2. �� :

�) {4x=y+3, 7^(y-3x+4)=7^(y-5x+3)+6};

�) {x=3y, log_(1/7)(y+x)+log_(1/7)(x-2y-1)=log_(1/7)(8/(y-1))};

�) {3y=x-2, 5^(2x-5y-3)=6-5^(2y-x+2)};

�) {y=2x, log_(1/6)(4x-y)+log_(1/6)(5x-2y-2)=5log_(1/6)(2/(x-2)^(1/5))}.

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