3(2-5n)-3(-4n+5)=12

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Solution for 3(2-5n)-3(-4n+5)=12 equation: 



3(2-5n)-3(-4n+5)=12

We move all terms to the left:

3(2-5n)-3(-4n+5)-(12)=0

We add all the numbers together, and all the variables

3(-5n+2)-3(-4n+5)-12=0

We multiply parentheses

-15n+12n+6-15-12=0

We add all the numbers together, and all the variables

-3n-21=0

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

-3n=21

n=21/-3

n=-7

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