Rozwiąż nierówność .
1) 8-12-4x-12+4x4-4x-12+4x-8x-16 / :(-8)x22) 2-4x-9 /*24-x-5>-81-9x>-80/:(-9)x>8.93) -2-3x/*23(7-x)-4-9x21-39x-4-9x-30x-17/:(-30)x0,574)->-1/*62(2+x)-3-x>-64+2x-3-x>-6x>-7
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1) 8-12-4x-12+4x
4-4x-12+4x
-8x-16 / :(-8)
x2
2) 2-4x-9 /*2
4-x-5>-81
-9x>-80/:(-9)
x>8.9
3) -2-3x/*2
3(7-x)-4-9x
21-39x-4-9x
-30x-17/:(-30)
x0,57
4)->-1/*6
2(2+x)-3-x>-6
4+2x-3-x>-6
x>-7