100=1-9n

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Solution for 100=1-9n equation: 



100=1-9n

We move all terms to the left:

100-(1-9n)=0

We add all the numbers together, and all the variables

-(-9n+1)+100=0

We get rid of parentheses

9n-1+100=0

We add all the numbers together, and all the variables

9n+99=0

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

9n=-99

n=-99/9

n=-11

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