Rozwiąż podane nierówności:
a)|7-2x|3
b)|2x+5|-3<0
c)|5x-1|<3
a)
|7-2x|≥3
7-2x≥3
-2x≥-4
x≤2
7-2x≤-3
-2x≤-10
x≥5
x∈(-∞,2>u<5,∞)
b)
|2x+5|-3<0
|2x+5|<3
2x+5<3
2x<-2
x<-1
2x+5>-3
2x>-8
x>-4
x∈(-4,-1)
c)
3/2|5x-1|<3
|5x-1|<2
5x-1<2
5x<3
x<3/5
5x-1>-2
5x>-1
x>-1/5
x∈(-1/5,3/5)
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a)
|7-2x|≥3
7-2x≥3
-2x≥-4
x≤2
7-2x≤-3
-2x≤-10
x≥5
x∈(-∞,2>u<5,∞)
b)
|2x+5|-3<0
|2x+5|<3
2x+5<3
2x<-2
x<-1
2x+5>-3
2x>-8
x>-4
x∈(-4,-1)
c)
3/2|5x-1|<3
|5x-1|<2
5x-1<2
5x<3
x<3/5
5x-1>-2
5x>-1
x>-1/5
x∈(-1/5,3/5)