zapisz wyrazenie w jak naprostszej postac i(3x-2)-[(4x+9)-(3x-2)]
(3x-2)-[(4x+9)-(3x-2)]=(3x-2)-(4x+9)+(3x-2)=3x-2-4x-9+3x-2=2x-13
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(3x-2)-[(4x+9)-(3x-2)]=(3x-2)-(4x+9)+(3x-2)=3x-2-4x-9+3x-2=2x-13