What integer $n$ satisfies $0\le n<9$ and $$-1111\equiv n\pmod 9~?$$
Question:
What integer $n$ satisfies $0\le n<9$ and $$-1111\equiv n\pmod 9~?$$
Answer:
Let's think step by step.

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What integer $n$ satisfies $0\le n<9$ and $$-1111\equiv n\pmod 9~?$$
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