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-x+3-x+1=6
-2x=2
x=-1
zal2 xe<1,3>
-x+3+x-1=6
2=6
xeФ
zal3 xe(3,+niesk)
x-3+x-1=6
2x=2
x=1
x nie nalezy do zalozenia
b)zal 1 xe(-niesk, -3)
-x-3-x+1=0
-2x=2
x=-1
nie nalezy do zalozenia
zal2 xe<-3,1>
x+3-x+1=0
4=0
xeФ
zal3 xe(1,+niesk)
x+3+x-1=0
2x=-2
x=-1
xeФ
c) |x+1|+|x|=3
zal1 xe(-niesk, -1)
-x-1-x=3
-2x=4
x=-2
zal2 xe<-1,0>
x+1-x=3
1=3
xeФ
zal3 xe(0, + niesk)
x+1+x=3
2x=2
x=1
d) zal1 xe(-niesk, -1)
-x-1-6+x=x-3
-4=x
zal2 xe<-1,3>
x+1-6+x=x-3
2x-5=x-3
x=2
zal3 xe(3,+niesk)
x+1-6+x=-x+3
2x-5=-x+3
3x=8
x=8/3
nie nalezy do zalozenia