2(n+3)-3=15

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Solution for 2(n+3)-3=15 equation: 



2(n+3)-3=15

We move all terms to the left:

2(n+3)-3-(15)=0

We add all the numbers together, and all the variables

2(n+3)-18=0

We multiply parentheses

2n+6-18=0

We add all the numbers together, and all the variables

2n-12=0

We move all terms containing n to the left, all other terms to the right

2n=12

n=12/2

n=6

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