Ile wynośi obwód wielokąta?? w załązniku
potrzebne na już!!!!!!!!!!
(x-3)+x+x+x+x+4+5x-2+3x-2= 13x-3
(5x-2)+4+x+x+x+(x-3)+(5x-2-2x)+((x-3)+(4-x))=5x-2+4+3x+x-3+5x-2-2x+x-3+4-x=12x-2
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(x-3)+x+x+x+x+4+5x-2+3x-2= 13x-3
(5x-2)+4+x+x+x+(x-3)+(5x-2-2x)+((x-3)+(4-x))=5x-2+4+3x+x-3+5x-2-2x+x-3+4-x=12x-2