Автор - irinafilatova2

1). 10 - 3у=7
2). -3x-5=4


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Ответ

Автор - NastyaBlank
1) 10 - 3y = 7
    -3y = 7 - 10
    -3y = -3
     y = -3: (-3)
     y = 1

2) -3x - 5 = 4
    -3x = 4+5
    -3x = 9
     x = 9: (-3)
     x = -3

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