Предмет: Математика, автор: anna14062003

уравнение 30*(1 5/6х 3 1/5)=231

Ответы

Автор ответа: krugly1981

0

30( 11/6x + 16/5) = 231
55x + 96 = 231
55x= 231 - 96
55x = 135
x = 135/55
x = 27/11
x = 2 целых 5/11

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