Предмет: Математика, автор: 64846383

помогите решить 3 ривняння​

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Автор ответа: MsKsusha29
1

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Пошаговое объяснение:

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Автор ответа: lakOR555
1

4) 0,9х-7,4=0,4х+4,3

0,9х-0,4х=4,3+7,4

0,5х=11,7

х=23,4

5)5,8-1,6х=0,3х-1,8

-1,6х-0,3х=-1,8-5,8

-1,9х=-7,6

х=4

6) \frac{3}{8}x+19=\frac{7}{12}x+24 \\ \\ \frac{3}{8}x-\frac{7}{12}x=24-19\\ \\ \frac{9-14}{24} x=5\\ \\ \frac{-5}{24} x=\frac{5}{1} \\ \\ x=-24

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