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Автор - annaushakova

(283-х)-33=0; 382-(х+42)=111; (536+х)-420=116; 437-(227+х)=0

Ответ

Автор - nikita1a
283-x=33              x+42=382-111
x=283-33               x+42=271   
x=250                     x=271-42  
                             x=229

536+x=116+420
536+x=536
x=536-536
x=0

227+x=437
x=437-227
x=210

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