Пример -2,86*6/7-6/7*064(Палочки это дроби)
-8*(k-3)+4(k-2)-2(3k+1)+-8(k+3)+4
5/9(3,6а-3(целых)3/5b)-3,5(4/7a-0,2b)
Уравнение
0,6*(y-3)-0,5(y-1)=15
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