-2(5+5n)-7=31-4n

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Solution for -2(5+5n)-7=31-4n equation: 



-2(5+5n)-7=31-4n

We move all terms to the left:

-2(5+5n)-7-(31-4n)=0

We add all the numbers together, and all the variables

-2(5n+5)-(-4n+31)-7=0

We multiply parentheses

-10n-(-4n+31)-10-7=0

We get rid of parentheses

-10n+4n-31-10-7=0

We add all the numbers together, and all the variables

-6n-48=0

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

-6n=48

n=48/-6

n=-8

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