Odpowiedź:
A) - 20y +10x - 2y + 8x= - 22y + 18x
B) +6x +2y - 3x - y= 3x + y
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Odpowiedź:
A) - 20y +10x - 2y + 8x= - 22y + 18x
B) +6x +2y - 3x - y= 3x + y