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1+7x=3+7x
We move all terms to the left:
1+7x-(3+7x)=0
We add all the numbers together, and all the variables
7x-(7x+3)+1=0
We get rid of parentheses
7x-7x-3+1=0
We add all the numbers together, and all the variables
-2!=0
There is no solution for this equation
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