Вычисли значение неизвестных переменных

Найдите значения \(x\) , \(y\) , \(z\) .

1. \(\bigg( 1\cfrac{1}{3} + 2\cfrac{2}{9} \bigg) \cdot \cfrac{3}{16} - 1\cfrac {2}{3} \cdot 3 = x\cfrac{y}{z}\) .
2. \({1 \cfrac{5}{7} : (-6) + \bigg( 1 \cfrac {16}{21} - 3\cfrac{4}{9}\bigg) \mathrlap{\::}}\) \({: \bigg( -1 \cfrac {11}{42} \bigg)= x\cfrac{y}{z}}\) .
3. \({\bigg( -1 \cfrac{1}{8} + \cfrac{27}{32}\bigg) \mathrlap{\::}}\) \({: (3,05-2,84) - \cfrac{0,3}{1,4}= x\cfrac{y}{z}}\) .

Ответ:

1. \(x =\) [ ];
   \(y = \) [ ];
   \(z = \) [ ].
2. \(x = \) [ ];
   \(y = \) [ ];
   \(z = \) [ ].
3. \(x = \) [ ];
   \(y = \) [ ];
   \(z = \) [ ].