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Algebra Difficulty 2.1 Junior Find the answer
If 3n=9+9+9, what is the value of n?
A number or a short expression. Spacing and $ signs are ignored.
Solution
Since 3n=9+9+9=3imes9, then n=9. Alternatively, we could note that 9+9+9=27 and so 3n=27 which gives n=327=9.
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