Odpowiedź:
5x+4-2x = 3x+4
4x-2x-3y+7= 2x-3y+7
-7+5x+7-5x= 0
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Odpowiedź:
5x+4-2x = 3x+4
4x-2x-3y+7= 2x-3y+7
-7+5x+7-5x= 0