Ответ:x∈[1/7;4]
Объяснение: { -51x≤-7 2/7, 3x≤52-40; {x≥51/7:51, 3x≤12; {x≥1/7,x≤4.
x∈[1/7;4]
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Ответ:x∈[1/7;4]
Объяснение: { -51x≤-7 2/7, 3x≤52-40; {x≥51/7:51, 3x≤12; {x≥1/7,x≤4.
x∈[1/7;4]