8 класс, алгебра, система неравенствпомогите пожалуйста . Created by shikamaruu. algebra-ru

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8 класс, алгебра, система неравенствпомогите пожалуйста ...

shikamaruu @shikamaruu

July 2022 1 0 Report

8 класс, алгебра, система неравенств

помогите пожалуйста

Answers & Comments

Universalka

Verified answer

$1)\left \{ {{2x-2\leq 1-x } \atop {31+5x>-(4+2x)}} \right.\\\\\left \{ {{2x-2\leq 1-x } \atop {31+5x>-4-2x}} \right.\\\\\left \{ {{2x+x\leq 1+2} \atop {5x+2x>-4-31}} \right.\\\\\left \{ {{3x\leq 3} \atop {x7x>-35}} \right.\\\\\left \{ {{x\leq1 } \atop {x>-5}} \right.$

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$Otvet:\boxed{x\in(-5;1]}\\\\\\2)\left \{ {{-2(3x+1)>7-3x} \atop {1-2x>4x-2}} \right. \\\\\left \{ {{-6x-2>7-3x} \atop {1-2x>4x-2}} \right.\\\\\left \{ {{-6x+3x>7+2} \atop {-2x-4x>-2-1}} \right.\\\\\left \{ {{-3x>9} \atop {-6x>-3}} \right.\\\\\left \{ {{x$