-n=9(n-10)

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



-n=9(n-10)
We move all terms to the left:
-n-(9(n-10))=0
We add all the numbers together, and all the variables
-1n-(9(n-10))=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
-1n-9n+90=0
We add all the numbers together, and all the variables
-10n+90=0
We move all terms containing n to the left, all other terms to the right
-10n=-90
n=-90/-10
n=+9

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