[..... .....+..... ....]+16-12-...+27-19-[....+12]=0 5....5....5....5.....5....5=5 5...5....5....5....5=2
niech .....=x [x+x+x+x]+16-12-x+27-19-[x+12]= 0
4x-x-x=0
x=0
dla 5....5....5....5.....5....5=5 5...5....5....5....5=2
niech .... = x
5+x+5+x+5+x+5+x+5+x+5=5
30+5x=55x=-25
x=-5
niech ....=x
5...5....5....5....5=2
5+x+5+x+5+x+5+x+5=2
25+4x=2
4x=-23
x=-5.5
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[..... .....+..... ....]+16-12-...+27-19-[....+12]=0 5....5....5....5.....5....5=5 5...5....5....5....5=2
niech .....=x
[x+x+x+x]+16-12-x+27-19-[x+12]= 0
4x-x-x=0
x=0
dla 5....5....5....5.....5....5=5 5...5....5....5....5=2
niech .... = x
5+x+5+x+5+x+5+x+5+x+5=5
30+5x=5
5x=-25
x=-5
niech ....=x
5...5....5....5....5=2
5+x+5+x+5+x+5+x+5=2
25+4x=2
4x=-23
x=-5.5