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25=2(n+4)
We move all terms to the left:
25-(2(n+4))=0
We calculate terms in parentheses: -(2(n+4)), so:We get rid of parentheses
2(n+4)
We multiply parentheses
2n+8
Back to the equation:
-(2n+8)
-2n-8+25=0
We add all the numbers together, and all the variables
-2n+17=0
We move all terms containing n to the left, all other terms to the right
-2n=-17
n=-17/-2
n=8+1/2
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