wykonaj dodawanie i zreduguj wyrazy podobne:5x-(2-x)+3x-2x +5=
5x-(2-x)+3x-2x +5=
5x-2+x+3x-2x+5
5x+x+3x-2x+5-2
7x+3
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5x-(2-x)+3x-2x +5=
5x-2+x+3x-2x+5
5x+x+3x-2x+5-2
7x+3