4n-40=-2(20-2n)

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Solution for 4n-40=-2(20-2n) equation: 



4n-40=-2(20-2n)

We move all terms to the left:

4n-40-(-2(20-2n))=0

We add all the numbers together, and all the variables

4n-(-2(-2n+20))-40=0



We calculate terms in parentheses: -(-2(-2n+20)), so:

-2(-2n+20)

We multiply parentheses

4n-40

Back to the equation:

-(4n-40)



We get rid of parentheses

4n-4n+40-40=0

We add all the numbers together, and all the variables

=0

n=0/1

n=0

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