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What is three times a number decreased by 21 is 57 in numberic form

What is three times a number decreased by 21 is 57 in numberic form
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What is three times a number decreased by 21 is 57 in numberic form

User Chris Klingler
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1 Answer

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3x-21=57
3x=21+57
3x=78
Divide by 3
X=26
User Goran Obradovic
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