-7(n-3)=-2(4+5n)-1

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Solution for -7(n-3)=-2(4+5n)-1 equation: 



-7(n-3)=-2(4+5n)-1

We move all terms to the left:

-7(n-3)-(-2(4+5n)-1)=0

We add all the numbers together, and all the variables

-7(n-3)-(-2(5n+4)-1)=0

We multiply parentheses

-7n-(-2(5n+4)-1)+21=0



We calculate terms in parentheses: -(-2(5n+4)-1), so:

-2(5n+4)-1

We multiply parentheses

-10n-8-1

We add all the numbers together, and all the variables

-10n-9

Back to the equation:

-(-10n-9)



We get rid of parentheses

-7n+10n+9+21=0

We add all the numbers together, and all the variables

3n+30=0

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

3n=-30

n=-30/3

n=-10

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