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$�� (1�4).1. {3x+2y=3, 3^y-2�3^((x-1)/2+y)=9}.2. {(4x-5y)/(5x-7y)+10x-14y=4, 4�5^(5x-7y)+5=5^(10x-8y)}.3. {3sin(x)+2cos(y)=0,5,...$

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�� (1�4).

1. {3x+2y=3, 3^y-2�3^((x-1)/2+y)=9}.

2. {(4x-5y)/(5x-7y)+10x-14y=4, 4�5^(5x-7y)+5=5^(10x-8y)}.

3. {3sin(x)+2cos(y)=0,5, 2sin(x)-3cos(y)=-4}.

4. {3/v(x-1)+2/v(y+2)=12, 5/v(x-1)-3/v(y+2)=1}.

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