№ 1 Решите неравенство:
А) 12х-16≥11х+2(3х+2)
Б) 4(х-1)-(9х-5)≤3
В) 5(х+1)+8>1-3(х+2)
Г) 6-3х<19-(х-7)
А) 12х-16≥11х+2(3х+2)
Б) 4(х-1)-(9х-5)≤3
В) 5(х+1)+8>1-3(х+2)
Г) 6-3х<19-(х-7)
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Answers & Comments
Verified answer
12x-16>=11x+2(3x+2)12x-16>=11x+6x+4
12x-11x-6x>=4+16
-5x>=20
5x<=-20
x<=-20/5
x<=-4
4(x-1)-(9x-5)<=3
4x-4-9x+5<=3
4x-9x<=3+4-5
-5x<=2
5x>=-2
x>=-2/5
x>=-0.4
5(х+1)+8>1-3(х+2)
5x+5+8>1-3x-6
5x+3x>1-6-5-8
8x>-18
x>-18/8
x>-2.25
6-3х<19-(х-7)
6-3x<19-x+7
-3x+x<19+7-6
-2x<20
2x>-20
x>-20/2
x>-10