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25-04-2020
Mathematics

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Four times a number is subtracted from seven to give fifteen

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2005jmac 2005jmac

25-04-2020

Answer: -2

Step-by-step explanation:

7-4n=15

Isolate the variable

7-7=0 15-7=8

-4n=8

-4n/-4 =n 8/-4=-2

N=-2

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