Question

$|1 - 5x > 12\\ |6x - 18 > 0$
ПОМОГИТЕЕЕЕ.ОЧЕНЬ СРОЧНО НУЖНА
ДО ЗАВТРА.ЭТО СИСТЕМА НЕРАВЕНСТВА.
ЭТОЙ ТОЖЕ ПОМОГИТЕЕЕ.ПОЖАЛУСТА
$|x - 4 > 5 - 2x \\ |3 - 2x < 7 + x$

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Answer 1

$\displaystyle\bf\\1)\\\\\left \{ {{1-5x > 12} \atop {6x-18 > 0}} \right. \\\\\\\left \{ {{}-5x > 12-1 \atop {6x > 18}} \right.\\\\\\\left \{ {{-5x > 11} \atop {x > 3}} \right. \\\\\\\left \{ {{x < -2,2} \atop {x > 3}} \right. \\\\\\Otvet \ : \ x\in \oslash$

решений нет

$\displaystyle\bf\\2)\\\\\left \{ {{x-4 > 5-2x} \atop {3-2x < 7+x}} \right. \\\\\\\left \{ {{x+2x > 5+4} \atop {-2x-x < 7-3}} \right. \\\\\\\left \{ {{3x > 9} \atop {-3x < 4}} \right. \\\\\\\left \{ {{x > 3} \atop {x > -1\dfrac{1}{3} }} \right. \ \ \ \Rightarrow \ \ \ x > 3\\\\\\Otvet \ : \ x\in(3 \ ; \ +\infty)$