7n+(3+2n)=30

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Solution for 7n+(3+2n)=30 equation: 



7n+(3+2n)=30

We move all terms to the left:

7n+(3+2n)-(30)=0

We add all the numbers together, and all the variables

7n+(2n+3)-30=0

We get rid of parentheses

7n+2n+3-30=0

We add all the numbers together, and all the variables

9n-27=0

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

9n=27

n=27/9

n=3

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