August 2018 2 13 Report
Pilnie potrzebuje dzieki z góry
zapisz w jak najprostszej postaci.
a) (a+b)-(2a-b)-(a-2b)=
b) (3x-y+1)-(x-y)=
d) (2a+a+3)-(3ab-a+3)=
dziekuje
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