Question

решите уравнение плиз очень надо 2(1 1/7-х)-3 1/14 = -2 5/7

Answer 1

2(1 1/7-х)-3 1/14 = -2 5/7
2 2/7-2х-3 1/14 = -2 5/7
-2х=-2 5/7-2 2/7+3 1/14
-2х=-2 1/14
х=2 1/14:2
х=1 1/28

Answer 2

2(1 1/7-х)-3 1/14 = -2 5/7
2(8/7 - x) - 43/14 = - 19/7
16/7 - 2x - 43/14 = -19/7
32/14 - 28/14x - 43/14 = -38/14
-28x = - 38 - 32 + 43      - 28x = 27      x = -27/28

Answer 3

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