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0} \atop {15-3x>0}} \right. => \left \{ {{x>- \frac{1}{2}} \atop {-3x>-15}} \right. =>" alt=" \left \{ {{2x-1>0} \atop {15-3x>0}} \right. => \left \{ {{x>- \frac{1}{2}} \atop {-3x>-15}} \right. =>" align="absmiddle" class="latex-formula">
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- \frac{1}{2}} \atop {x<5}} \right." alt="\left \{ {{x>- \frac{1}{2}} \atop {x<5}} \right." align="absmiddle" class="latex-formula">
Получим открытый промежуток от
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до 5.
S=(
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; 5)