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25hjoerf10

1) 2х - 9 = 3

  2х = 3 + 9

  2х = 12

  х = 6

2) х + 3b = - 10

   x = - 10 - 3b


- 10 - 3b = 6

- 3b = 6 + 10

- 3b = 16

b=-5frac{1}{3}

Ответ: уравнения будут равносильными при

b=-5frac{1}{3}



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