-9=-10n+9

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



-9=-10n+9
We move all terms to the left:
-9-(-10n+9)=0
We get rid of parentheses
10n-9-9=0
We add all the numbers together, and all the variables
10n-18=0
We move all terms containing n to the left, all other terms to the right
10n=18
n=18/10
n=1+4/5

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