Предмет: Математика, автор: vladsmuter

7,43 - 1,28х = 1,42х+ 5=

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Автор ответа: triolana

0

7,43-1,28x=1,42x+5
-1,42x-1,28x=5-7,43
-2,7x=2,43
x=-2,43:(-2,7)
x=0,9
============================

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