9(4n-20)-8=64

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Solution for 9(4n-20)-8=64 equation: 



9(4n-20)-8=64

We move all terms to the left:

9(4n-20)-8-(64)=0

We add all the numbers together, and all the variables

9(4n-20)-72=0

We multiply parentheses

36n-180-72=0

We add all the numbers together, and all the variables

36n-252=0

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

36n=252

n=252/36

n=7

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