Ответ:-4(3-5x) = 18x - 7
-4 * 3 + 4 * 5x = 18x - 7
-12 + 20x = 18x - 7
20x - 18x = -7 + 12
2x = 5
x = 2.5
x = 2.5.
Пошаговое объяснение:
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Ответ:-4(3-5x) = 18x - 7
-4 * 3 + 4 * 5x = 18x - 7
-12 + 20x = 18x - 7
20x - 18x = -7 + 12
2x = 5
x = 2.5
x = 2.5.
Пошаговое объяснение: