3=-12+5n

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Solution for 3=-12+5n equation: 



3=-12+5n

We move all terms to the left:

3-(-12+5n)=0

We add all the numbers together, and all the variables

-(5n-12)+3=0

We get rid of parentheses

-5n+12+3=0

We add all the numbers together, and all the variables

-5n+15=0

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

-5n=-15

n=-15/-5

n=+3

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