Предмет: Математика, автор: марьям2015

4.7y-(2.5y+12.4)=1.9 решите плииз

Ответы

Автор ответа: кляча

2

4,7у - 2,5у - 12,4 = 1,9
2,2у = 12,4 + 1,9
2,2у = 14,3
у = 14,3 : 2,2
у = 6,5

кристина2003крд: 4.7y - (2.5y + 12.4) = 1.9
4,7у-2,5у-12,4=1,9
2,2у=1,9+12,4
2,2у=14,3
у=14,3/2,2
у=6,5

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