Three times the difference between ten times a number and three is eighty-one.

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asked May 16, 2016 204k views

2 votes

Three times the difference between ten times a number and three is eighty-one.

Mathematics
high-school

Minakshi asked

by Minakshi

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$n-the\ number\\\\3(10n-3)=81\ \ \ \ |divide\ both\ sides\ by\ 3\\\\10n-3=27\ \ \ \ \ |add\ 3\ to\ both\ sides\\\\10n=30\ \ \ \ \ |divide\ both\ sides\ by\ 10\\\\\boxed{n=3}$

Minor Threat answered May 22, 2016

by Minor Threat

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