April 2019 1 13 Report
1. 4x² + 6x - x² - 2x=
2.9a + 4b - 5a + 3b=
3.4p - 5pq - pq - 7p + 6=
4.8x - 4y + 5a + 3b=
5.4y + 7z - 6y +9z=

Tolong dijawab y..

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