а зачем координатная примая ????
ответ итак виден
16x - 96 <= 0</p>
10 - 5x <=0</p>
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16x <= 96 / : 16</p>
10 <= 5x / : 5</p>
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x <= 6</p>
x >= 2
x ∈ [2, 6]
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