13+7.5n=9+7.9n=

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Solution for 13+7.5n=9+7.9n= equation: 



13+7.5n=9+7.9n=

We move all terms to the left:

13+7.5n-(9+7.9n)=0

We add all the numbers together, and all the variables

7.5n-(7.9n+9)+13=0

We get rid of parentheses

7.5n-7.9n-9+13=0

We add all the numbers together, and all the variables

-0.4n+4=0

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

-0.4n=-4

n=-4/-0.4

n=+10

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