7n-(-21)=35

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Solution for 7n-(-21)=35 equation: 



7n-(-21)=35

We move all terms to the left:

7n-(-21)-(35)=0

determiningTheFunctionDomain
7n-35-(-21)=0

We add all the numbers together, and all the variables

7n-14=0

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

7n=14

n=14/7

n=2

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