20=2(-7+n)

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Solution for 20=2(-7+n) equation:



20=2(-7+n)
We move all terms to the left:
20-(2(-7+n))=0
We add all the numbers together, and all the variables
-(2(n-7))+20=0
We calculate terms in parentheses: -(2(n-7)), so:
2(n-7)
We multiply parentheses
2n-14
Back to the equation:
-(2n-14)
We get rid of parentheses
-2n+14+20=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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