Penjelasan dengan langkah-langkah:
8x + y + x - 4y + 2
(8x+x) + (y - 4y) + 2
9x -3y + 2
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Penjelasan dengan langkah-langkah:
8x + y + x - 4y + 2
(8x+x) + (y - 4y) + 2
9x -3y + 2