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7x-3x+1=12+4x
We move all terms to the left:
7x-3x+1-(12+4x)=0
We add all the numbers together, and all the variables
7x-3x-(4x+12)+1=0
We add all the numbers together, and all the variables
4x-(4x+12)+1=0
We get rid of parentheses
4x-4x-12+1=0
We add all the numbers together, and all the variables
-11!=0
There is no solution for this equation
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