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5-2n-1=9-2n
We move all terms to the left:
5-2n-1-(9-2n)=0
We add all the numbers together, and all the variables
-2n-(-2n+9)+5-1=0
We add all the numbers together, and all the variables
-2n-(-2n+9)+4=0
We get rid of parentheses
-2n+2n-9+4=0
We add all the numbers together, and all the variables
-5!=0
There is no solution for this equation
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