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2.8+x=4.2+x
We move all terms to the left:
2.8+x-(4.2+x)=0
We add all the numbers together, and all the variables
x-(x+4.2)+2.8=0
We get rid of parentheses
x-x-4.2+2.8=0
We add all the numbers together, and all the variables
-1.4!=0
There is no solution for this equation
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