Найдите корень уравнения: (х+4) (-2)=(х+9) 3
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2
05.09.2019 18:40
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1
-2х переносим на другую сторону, меняя знак, то же самое делаем с 27
3х+2х=-27-8
5х = -35
Х= - 35:5
Х= - 7