-4(3+7n)=30-7n

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Solution for -4(3+7n)=30-7n equation: 



-4(3+7n)=30-7n

We move all terms to the left:

-4(3+7n)-(30-7n)=0

We add all the numbers together, and all the variables

-4(7n+3)-(-7n+30)=0

We multiply parentheses

-28n-(-7n+30)-12=0

We get rid of parentheses

-28n+7n-30-12=0

We add all the numbers together, and all the variables

-21n-42=0

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

-21n=42

n=42/-21

n=-2

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