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KyloRen
a fost răspuns

{[(2+d)x2+2]x2+2}X2+2=100:2+2x2

Răspuns :

{[(2+d)x2+2]x2+2}x2+2=50+4=54
{[(2+d)x2+2]x2+2}x2=54-2
[(2+d)x2+2]x2+2=52:2
[(2+d)x2+2]x2=26-2
(2+d)x2+2=24:2
(2+d)x2=12-2
2+d=10:2
d=5-2
d=3

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