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15-11-2019
Mathematics

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if the sum of a number and three is tripled, the result is eight less than twice the number. find the number

Respuesta :

15-11-2019

3(3 + n)=2n-8
9+3n=2n-8
+8 +8
17+3n=2n
-3n -3n
17= -1n
n= -17

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