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x+x-1+x-2+x-3=34
x+x+x+x=34+6
4x=40 /:4
x=10
liczby to 10,9,8,7
Druga liczba = x -1
Trzecia liczba = x-2
Czwarta liczba-= x-3
x+ x-1+x-2 +x-3 =34
4x -6 =34 /+6
4x= 40
x=10
Szukana liczba to 10.