Jawaban:
2x - 6y - 5
3x + 2y - 4
---------------- +
5x - 4y - 9
-5x + 8y
4x - 7y
------------- -
-9x + 15y
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Jawaban:
2x - 6y - 5
3x + 2y - 4
---------------- +
5x - 4y - 9
-5x + 8y
4x - 7y
------------- -
-9x + 15y