2x3=6. So the Greatest Common Factor (GCF) is 6
5 5/30 is the answer to the question.
If the number of days is d and he writes 3 pages for every d, then we can say
3d = 81
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Subtract sides 3


Multiply sides by 6


Subtract sides 4x


Negatives simplifies

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CHECK :



Thus the solution is correct .
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