30=2n-4

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Solution for 30=2n-4 equation: 



30=2n-4

We move all terms to the left:

30-(2n-4)=0

We get rid of parentheses

-2n+4+30=0

We add all the numbers together, and all the variables

-2n+34=0

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

-2n=-34

n=-34/-2

n=+17

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