-10n=-7-9n

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Solution for -10n=-7-9n equation: 



-10n=-7-9n

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-10n+9n+7=0

We add all the numbers together, and all the variables

-1n+7=0

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

-n=-7

n=-7/-1

n=+7

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