n+(n+6)=3.90

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Solution for n+(n+6)=3.90 equation: 



n+(n+6)=3.90

We move all terms to the left:

n+(n+6)-(3.90)=0

We add all the numbers together, and all the variables

n+(n+6)-(3.9)=0

We add all the numbers together, and all the variables

n+(n+6)-3.9=0

We get rid of parentheses

n+n+6-3.9=0

We add all the numbers together, and all the variables

2n+2.1=0

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

2n=-2.1

n=-2.1/2

n=-1+0.1/2

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