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2x+8=x+4.2+x
We move all terms to the left:
2x+8-(x+4.2+x)=0
We add all the numbers together, and all the variables
2x-(2x+4.2)+8=0
We get rid of parentheses
2x-2x-4.2+8=0
We add all the numbers together, and all the variables
3.8!=0
There is no solution for this equation
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