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3n=3-10
We move all terms to the left:
3n-(3-10)=0
We add all the numbers together, and all the variables
3n-(-7)=0
We add all the numbers together, and all the variables
3n+7=0
We move all terms containing n to the left, all other terms to the right
3n=-7
n=-7/3
n=-2+1/3
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