Odpowiedź:
4) -( x-2)+3(x-1)+2=0
-x+2 +3x-3+2=0
2x+4-3=0
2x+1=0
2x=-1
x=-1/2
5) 3-(x+5)+2(x+1)=0
3-x-5+2x+2=0
x-5+5=0
x=0
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Odpowiedź:
4) -( x-2)+3(x-1)+2=0
-x+2 +3x-3+2=0
2x+4-3=0
2x+1=0
2x=-1
x=-1/2
5) 3-(x+5)+2(x+1)=0
3-x-5+2x+2=0
x-5+5=0
x=0