-20.5=-4(5.5n)-4.5

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Solution for -20.5=-4(5.5n)-4.5 equation: 



-20.5=-4(5.5n)-4.5

We move all terms to the left:

-20.5-(-4(5.5n)-4.5)=0

We add all the numbers together, and all the variables

-(-4(+5.5n)-4.5)-20.5=0



We calculate terms in parentheses: -(-4(+5.5n)-4.5), so:

-4(+5.5n)-4.5

We multiply parentheses

-20n-4.5

Back to the equation:

-(-20n-4.5)



We get rid of parentheses

20n+4.5-20.5=0

We add all the numbers together, and all the variables

20n-16=0

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

20n=16

n=16/20

n=4/5

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