3-7(1+3n)=-109

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Solution for 3-7(1+3n)=-109 equation: 



3-7(1+3n)=-109

We move all terms to the left:

3-7(1+3n)-(-109)=0

We add all the numbers together, and all the variables

-7(3n+1)+3-(-109)=0

We add all the numbers together, and all the variables

-7(3n+1)+112=0

We multiply parentheses

-21n-7+112=0

We add all the numbers together, and all the variables

-21n+105=0

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

-21n=-105

n=-105/-21

n=+5

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