-10n-9=7(-4n+9)+10n

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Solution for -10n-9=7(-4n+9)+10n equation: 



-10n-9=7(-4n+9)+10n

We move all terms to the left:

-10n-9-(7(-4n+9)+10n)=0



We calculate terms in parentheses: -(7(-4n+9)+10n), so:

7(-4n+9)+10n

We add all the numbers together, and all the variables

10n+7(-4n+9)

We multiply parentheses

10n-28n+63

We add all the numbers together, and all the variables

-18n+63

Back to the equation:

-(-18n+63)



We get rid of parentheses

-10n+18n-63-9=0

We add all the numbers together, and all the variables

8n-72=0

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

8n=72

n=72/8

n=9

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