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14-7n=14n+28
We move all terms to the left:
14-7n-(14n+28)=0
We get rid of parentheses
-7n-14n-28+14=0
We add all the numbers together, and all the variables
-21n-14=0
We move all terms containing n to the left, all other terms to the right
-21n=14
n=14/-21
n=-2/3
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