Question

решите систему неравенств  {18-4х≤0   {2x-14≤4

Answer 1

$left { {{18-4x leq0 } atop {2x-14 leq 4}} right. left { {{4x geq 18} atop {2x leq 18}} right. left { {{x geq 4.5} atop {x leq 9}} right.$
Ответ: 4.5≤x≤9 или [4.5;9]

Answer 2

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