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Help pleaseeeee hurryyyy
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3 votes
Help pleaseeeee hurryyyy

Help pleaseeeee hurryyyy-example-1
User Olivroy
by
5.2k points

1 Answer

3 votes

Answer:

3

Explanation:

3n+9= -4n +30

3n= -4n+21

7n=21

7n/7=21

n=3

User Knick
by
5.0k points
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