a) \(x:( - 2,14) = ( - 3,12):1,2\)
\( \Rightarrow x.1,2 = ( - 2,14).( - 3,12) \)
\(\displaystyle \Rightarrow x = {{( - 2,14).( - 3,12)} \over {1,2}} = 5,564\)
b) \(\displaystyle 2{2 \over 3}:x = 2{1 \over {12}}:( - 0,06)\)
\(\eqalign{
&\Rightarrow x.2{1 \over {12}} = 2{2 \over 3}.( - 0,06) \cr
&\Rightarrow x.{{25} \over {12}} = {8 \over 3}.{{ - 3} \over {50}} \cr
& \Rightarrow x = \left( {{8 \over 3}.{{ - 3} \over {50}}} \right):{{25} \over {12}} \cr& \Rightarrow x = {{ - 8} \over {50}}.{{12} \over {25}} = {{ - 48} \over {625}} \cr} \)
