1.реши уравнение: 2/9*(х-18)-(х+3)=1/9*(х+1) 2.Найди неизвестный член пропорции: 3:х=7:1/3  СРОЧНО!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!ПЛИЗ!!!!!!!!!!!!!!!!!  
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