Предмет: Математика, автор: diamonds555

100-d=20+10 ( надо решить уровнение)

Ответы

Автор ответа: bill14

100-d=20+10
100-d=30
-d=30-100
-d=-70
d=70

diamonds555: спасибо

bill14: незачто

Автор ответа: dima45632178952

100-d=20+10
d=100-30
d=70
-----------------------
100-70=20+10
30=30

diamonds555: спасибо

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