4.2n=+9

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Solution for 4.2n=+9 equation: 



4.2n=+9

We move all terms to the left:

4.2n-(+9)=0

We add all the numbers together, and all the variables

4.2n-9=0

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

4.2n=9

n=9/4.2

n=2+0.6/4.2

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