Предмет: Математика, автор: Незнайка1355

3(x+3)-3(4-x)-x-3 пожалуйста

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Автор ответа: Kalica228

0

3(x+3)-3(4-x)-x-3
3x+6-12+3x-x-3=0
5x=-9
X=-1,8

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