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0.4x+0.1=0.8x-2.3
We move all terms to the left:
0.4x+0.1-(0.8x-2.3)=0
We get rid of parentheses
0.4x-0.8x+2.3+0.1=0
We add all the numbers together, and all the variables
-0.4x+2.4=0
We move all terms containing x to the left, all other terms to the right
-0.4x=-2.4
x=-2.4/-0.4
x=5+0.4/0.4
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