Odpowiedź:
3(x+2y+4) - 4(x-y-1) - (-x+10y+10)= 3x+6y+12-4x+4y+4+x-10y-10= 12+4-10=6
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Odpowiedź:
3(x+2y+4) - 4(x-y-1) - (-x+10y+10)= 3x+6y+12-4x+4y+4+x-10y-10= 12+4-10=6