Ответ:2
Пошаговое объяснение:
5х - 4y = 14 |*2
7х + 8y = 6
10x - 8y = 28
7x + 8y = 6
10x - 8y + 7x + 8y = 28 + 6
17x = 34
x = 2
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Ответ:2
Пошаговое объяснение:
5х - 4y = 14 |*2
7х + 8y = 6
10x - 8y = 28
7x + 8y = 6
10x - 8y + 7x + 8y = 28 + 6
17x = 34
x = 2