-225=9(-10+n)

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Solution for -225=9(-10+n) equation: 



-225=9(-10+n)

We move all terms to the left:

-225-(9(-10+n))=0

We add all the numbers together, and all the variables

-(9(n-10))-225=0



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

9(n-10)

We multiply parentheses

9n-90

Back to the equation:

-(9n-90)



We get rid of parentheses

-9n+90-225=0

We add all the numbers together, and all the variables

-9n-135=0

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

-9n=135

n=135/-9

n=-15

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