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x,y,z ciag goem
x,y,z-8 ciag arytm
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x+y+z=26
y²=xz .........ciag geom
y=(x+z-8)/2 ........ciag arytm
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x+z-8=2y→x+z=2y-8
3y-8=26→ 3y=34→y=34/3
to mi sie nie podoba
czekam na korekte tresci