Предмет: Математика, автор: mмааиii

пож помагите !!! по понятней!!!!!!! 9(143-13x)=234

Ответы

Автор ответа: Аноним

0

9(143-13х)=234
1287-117х=234
-117х=234-1287
-117х=-1053
Х=9

Автор ответа: sevgina0208

0

9(143-13x)=234
1287-117x=234
-117x=-1287+234
-117x=-1053
x=9

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