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Marina CMI [18]
3 years ago
9

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

Mathematics
1 answer:
Ilya [14]3 years ago
6 0

Answer:

it's definitely a

Step-by-step explanation:

hi

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