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Автор - lerabrovkina

Решите неравенство, пожалуйста: 4(3 – х) – 3х ≤19.

Ответ

Автор - Apceniy
4(3 – х) – 3х  leq 19
(12-4x) - 3x  leq 19
12-7x  leq 19
7x = 12-19
7x = -7
x = -1

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