Question

Решите пожалуйста . С объяснениями пожайлуста.
Решите системы неравенств
№969
3,4,5,6

Answer 1

Ответ:

вообщем, вот..

Пошаговое объяснение:

на фото

Answer 2

Решение:

$969.3.\\ left { {{4x+9>-15} atop {2-xleq5}} right. \\ left { {{4x>-15-9} atop {-xleq5-2}} right. \\ left { {{4x>-24} atop {-xleq3}} right. \\ left { {{x>-6} atop {xgeq-3}} right.\\ xin [-3; infty)$

$969.4.\\left { {{2x+3 geq x-1} atop {5x-22 leq x+2}} right. \\left { {{2x-x geq -1-3} atop {5x-x leq 2+22}} right. \\left { {{x geq -4} atop {4x leq 24}} right. \\left { {{x geq -4} atop {x leq 6}} right. \\xin [-4; 6]$

$969.5.\\left { {{7x + 9 < 2x - 1} atop {4+11x>9x-14}} right. \\left { {{7x - 2x < -1 - 9} atop {11x-9x>-14-4}} right.\\left { {{5x<-10} atop {2x>-18}} right. \\left { {{x<-2} atop {x>-9}} right.\\x in (-9; -2)$

$969.6\\left { {{xgeq0} atop {x-5>2x+1}} right. \\left { {{xgeq0} atop {x-2x> 1 + 5}} right. \\left { {{xgeq0} atop {-x>6}} right. \\left { {{xgeq0} atop {x<-6}} right. \\xin (-infty; -6) cup [0; infty)$