2(5-4n)+7=81

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Solution for 2(5-4n)+7=81 equation: 



2(5-4n)+7=81

We move all terms to the left:

2(5-4n)+7-(81)=0

We add all the numbers together, and all the variables

2(-4n+5)+7-81=0

We add all the numbers together, and all the variables

2(-4n+5)-74=0

We multiply parentheses

-8n+10-74=0

We add all the numbers together, and all the variables

-8n-64=0

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

-8n=64

n=64/-8

n=-8

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