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26-04-2016
Mathematics

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What's the number when the quotient of a number and -7 decreased by 2 is 10?

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GeneralKnowledge GeneralKnowledge

26-04-2016

Let's read through this and make an equation:
? ("number")
? / -7 ("quotient of a number and -7")
(? / -7) - 2 ("decreased by 2")
(? / -7) - 2 = 10 ("is 10")

Now we can solve:
(? / -7) - 2 = 10
? / -7 = 12
? = -84

The number is -84

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