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0.404x+0.002=0.81
We move all terms to the left:
0.404x+0.002-(0.81)=0
We add all the numbers together, and all the variables
0.404x-0.808=0
We move all terms containing x to the left, all other terms to the right
0.404x=0.808
x=0.808/0.404
x=2
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