31+7n=4(1+3n)+2

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Solution for 31+7n=4(1+3n)+2 equation: 



31+7n=4(1+3n)+2

We move all terms to the left:

31+7n-(4(1+3n)+2)=0

We add all the numbers together, and all the variables

7n-(4(3n+1)+2)+31=0



We calculate terms in parentheses: -(4(3n+1)+2), so:

4(3n+1)+2

We multiply parentheses

12n+4+2

We add all the numbers together, and all the variables

12n+6

Back to the equation:

-(12n+6)



We get rid of parentheses

7n-12n-6+31=0

We add all the numbers together, and all the variables

-5n+25=0

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

-5n=-25

n=-25/-5

n=+5

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