3(1+6n)+3n=-123

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Solution for 3(1+6n)+3n=-123 equation: 



3(1+6n)+3n=-123

We move all terms to the left:

3(1+6n)+3n-(-123)=0

We add all the numbers together, and all the variables

3(6n+1)+3n-(-123)=0

We add all the numbers together, and all the variables

3n+3(6n+1)+123=0

We multiply parentheses

3n+18n+3+123=0

We add all the numbers together, and all the variables

21n+126=0

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

21n=-126

n=-126/21

n=-6

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