Question

Терміново потрібні відповіді будь ласка

Answer 1

$\displaystyle\bf\\5)\\\\\left \{ {{4x+6\leq 20} \atop {-x-3\leq 1}} \right.\\\\\\\left \{ {{4x\leq 20-6} \atop {-x\leq 1+3}} \right. \\\\\\\left \{ {{4x\leq 14} \atop {-x\leq 4}} \right. \\\\\\\left \{ {{x\leq 3,5} \atop {x\geq -4}} \right. \\\\\\Otvet \ : \ x\in\Big[-4 \ ; \ 3,5\Big]\\\\\\6)\\\\\left \{ {{4x-7\leq 3x} \atop {12-3x < x}} \right. \\\\\\\left \{ {{4x-3x\leq 7} \atop {-3x-x < -12}} \right. \\\\\\\left \{ {{x\leq 7} \atop {-4x < -12}} \right.$

$\displaystyle\bf\\\left \{ {{x\leq 7} \atop {x > 3}} \right. \\\\\\x\in\Big(3 \ ; \ 7\Big]\\\\\\Otvet \ : \ 4 \ ; \ 5 \ ; \ 6 \ ; \ 7$