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Rozwiaz nierownosci i zapisz zbior zadan w postaci przedziału
Tylko a,b,c
a)
-2(x+6)>4(3+2x)
-2x-12 > 12+8x
-2x-8x > 12+12
-10x > 24 / (-10)
x < 2,4
(-∞;2,4)
b)
3(2-x)≤ -⅔(6x-21)
6-3x ≤ -4x+14
x ≤ 8
(-∞,8>
c)
(6-3x)/2 ≥ 5x-3/2 /*2
6-3x ≥ 10x-3
-13x ≥ -9 / (-13)
x ≤ 9/13
(-∞,9/13>
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a)
-2(x+6)>4(3+2x)
-2x-12 > 12+8x
-2x-8x > 12+12
-10x > 24 / (-10)
x < 2,4
(-∞;2,4)
b)
3(2-x)≤ -⅔(6x-21)
6-3x ≤ -4x+14
x ≤ 8
(-∞,8>
c)
(6-3x)/2 ≥ 5x-3/2 /*2
6-3x ≥ 10x-3
-13x ≥ -9 / (-13)
x ≤ 9/13
(-∞,9/13>