-12=10n-40n+3

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Solution for -12=10n-40n+3 equation: 



-12=10n-40n+3

We move all terms to the left:

-12-(10n-40n+3)=0

We add all the numbers together, and all the variables

-(-30n+3)-12=0

We get rid of parentheses

30n-3-12=0

We add all the numbers together, and all the variables

30n-15=0

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

30n=15

n=15/30

n=1/2

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