Срочно.Даю 45 баллов.
Пример: 11,5-|Х|=-5,7;|x|=11,5-(-5,7); |x|=(11,5+5,7);|x|=17,2;х1=17,2;х2=-17,2


А) 15,6 + x= 3,7;

Б)3,8 + х =-2,2


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