-10-5n=7(5-n)-7n

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Solution for -10-5n=7(5-n)-7n equation: 



-10-5n=7(5-n)-7n

We move all terms to the left:

-10-5n-(7(5-n)-7n)=0

We add all the numbers together, and all the variables

-5n-(7(-1n+5)-7n)-10=0



We calculate terms in parentheses: -(7(-1n+5)-7n), so:

7(-1n+5)-7n

We add all the numbers together, and all the variables

-7n+7(-1n+5)

We multiply parentheses

-7n-7n+35

We add all the numbers together, and all the variables

-14n+35

Back to the equation:

-(-14n+35)



We get rid of parentheses

-5n+14n-35-10=0

We add all the numbers together, and all the variables

9n-45=0

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

9n=45

n=45/9

n=5

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