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2n+115=2n+20-5
We move all terms to the left:
2n+115-(2n+20-5)=0
We add all the numbers together, and all the variables
2n-(2n+15)+115=0
We get rid of parentheses
2n-2n-15+115=0
We add all the numbers together, and all the variables
100!=0
There is no solution for this equation
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