2(n+10)=4(n-10)

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Solution for 2(n+10)=4(n-10) equation: 



2(n+10)=4(n-10)

We move all terms to the left:

2(n+10)-(4(n-10))=0

We multiply parentheses

2n-(4(n-10))+20=0



We calculate terms in parentheses: -(4(n-10)), so:

4(n-10)

We multiply parentheses

4n-40

Back to the equation:

-(4n-40)



We get rid of parentheses

2n-4n+40+20=0

We add all the numbers together, and all the variables

-2n+60=0

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

-2n=-60

n=-60/-2

n=+30

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