-31=4(1-7n)+7(4n-5)

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Solution for -31=4(1-7n)+7(4n-5) equation: 



-31=4(1-7n)+7(4n-5)

We move all terms to the left:

-31-(4(1-7n)+7(4n-5))=0

We add all the numbers together, and all the variables

-(4(-7n+1)+7(4n-5))-31=0



We calculate terms in parentheses: -(4(-7n+1)+7(4n-5)), so:

4(-7n+1)+7(4n-5)

We multiply parentheses

-28n+28n+4-35

We add all the numbers together, and all the variables

-31

Back to the equation:

-(-31)



We add all the numbers together, and all the variables

=0

n=0/1

n=0

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