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0.4=2x-1
We move all terms to the left:
0.4-(2x-1)=0
We get rid of parentheses
-2x+1+0.4=0
We add all the numbers together, and all the variables
-2x+1.4=0
We move all terms containing x to the left, all other terms to the right
-2x=-1.4
x=-1.4/-2
x=1/1.4285714285714
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