PleaseHelpIdkIt PleaseHelpIdkIt

14-09-2019
Mathematics

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3n=30+3n(n-4) Find n. .-.

3n303nn4 Find n class=

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Аноним Аноним

14-09-2019

Answer:

n=6

Step-by-step explanation:

6n= 30+3(n-4)

6n=30+3n-12

6n-3n=30-12

3n=18

n=18/3

n=6

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emily10898Emily10898 emily10898Emily10898

14-09-2019

Answer and Step-by-step explanation:

6n = 30 + 3(n - 4)

6n = 30 + 3n - 12

6n = 18 + 3n

-3n -3n

3n = 18

[tex]\frac{3n}{3} = \frac{18}{3}[/tex]

n = 6

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