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Mathematics, 05.03.2021 04:10 bokewen

9. a + 12 + 2a - 1
10. 8x - 3 + 8x + 3
11. 2x + 16 - 3x + 4
12. x + y - 2x-3y

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9. a + 12 + 2a - 1
10. 8x - 3 + 8x + 3
11. 2x + 16 - 3x + 4
12. x + y - 2x-3y...
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