45=3(-3-4n)

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Solution for 45=3(-3-4n) equation: 



45=3(-3-4n)

We move all terms to the left:

45-(3(-3-4n))=0

We add all the numbers together, and all the variables

-(3(-4n-3))+45=0



We calculate terms in parentheses: -(3(-4n-3)), so:

3(-4n-3)

We multiply parentheses

-12n-9

Back to the equation:

-(-12n-9)



We get rid of parentheses

12n+9+45=0

We add all the numbers together, and all the variables

12n+54=0

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

12n=-54

n=-54/12

n=-4+1/2

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