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Автор - MrCrayYoutube

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Ответ

Автор - evvoronina1
8 + |0,8у - 1.2| / 1,2 = 13
Умножим обе части уравнения на 1,2, чтобы избавиться от знаменателя.
8 • 1,2 + |0,8у - 1.2| • 1,2 / 1,2 = 13 • 1,2
9,6 + |0,8у - 1,2| = 15,6
|0,8у - 1,2| = 15,6 - 9,6
|0,8у - 1,2| = 6

1) 0,8у - 1,2 = 6
0,8у = 6 + 1,2
0,8у = 7,2
у = 7,2 : 0,8
у1 = 9

2) -(0,8у - 1,2) = 6
0,8у + 1,2 = 6
-0,8у = 6 - 1,2
-0,8у = 4,8
у = 4,8 : (-0,8)
у2 = -6

Ответ: у1 = 9; у2 = 6

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