3=(n-13)/2

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Solution for 3=(n-13)/2 equation: 



3=(n-13)/2

We move all terms to the left:

3-((n-13)/2)=0

We multiply all the terms by the denominator


-((n-13)+3*2)=0



We calculate terms in parentheses: -((n-13)+3*2), so:

(n-13)+3*2

We add all the numbers together, and all the variables

(n-13)+6

We get rid of parentheses

n-13+6

We add all the numbers together, and all the variables

n-7

Back to the equation:

-(n-7)



We get rid of parentheses

-n+7=0

We add all the numbers together, and all the variables

-1n+7=0

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

-n=-7

n=-7/-1

n=+7

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