2n+3.5n=7

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Solution for 2n+3.5n=7 equation: 



2n+3.5n=7

We move all terms to the left:

2n+3.5n-(7)=0

We add all the numbers together, and all the variables

5.5n-7=0

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

5.5n=7

n=7/5.5

n=1+1/3.6666666666667

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