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19=7(3n-5)
We move all terms to the left:
19-(7(3n-5))=0
We calculate terms in parentheses: -(7(3n-5)), so:We get rid of parentheses
7(3n-5)
We multiply parentheses
21n-35
Back to the equation:
-(21n-35)
-21n+35+19=0
We add all the numbers together, and all the variables
-21n+54=0
We move all terms containing n to the left, all other terms to the right
-21n=-54
n=-54/-21
n=2+4/7
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