Opuść nawiasy i zredukuj wyrazy podobne: a)4x-7y+x+7=
b)3a-2-5-a=
c)-5x+y-8+2x-4=
Pliss na teraz
b)3a-2-5-a=
c)-5x+y-8+2x-4=
Pliss na teraz
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