Предмет: Математика, автор: marusyabat

Упростите вырожение 9.8+r-7.9+3.4-r

Ответы

Автор ответа: Агентизспецназа

9,8+r-7,9+3,4-r=5,3..................

Автор ответа: Helenn2

+r и -r вместе дают 0. поэтому складываем только цифры. получается 5,3

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