7n-20=2(n+10)

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Solution for 7n-20=2(n+10) equation: 



7n-20=2(n+10)

We move all terms to the left:

7n-20-(2(n+10))=0



We calculate terms in parentheses: -(2(n+10)), so:

2(n+10)

We multiply parentheses

2n+20

Back to the equation:

-(2n+20)



We get rid of parentheses

7n-2n-20-20=0

We add all the numbers together, and all the variables

5n-40=0

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

5n=40

n=40/5

n=8

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