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svetoff [14.1K]

3 years ago

15

Ill mark brainliest, question is attached

2 answers:

Evgesh-ka [11]3 years ago

6 0

Answer:

-3

Step-by-step explanation:

-9u+9u is 0 so all you are left with is -3

mart [117]3 years ago

3 0

Answer:

-3

Step-by-step explanation:

-9u + 9u - 3

-9u and 9u cancel out, so it simplifies to -3

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