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0.4x=00.8
We move all terms to the left:
0.4x-(00.8)=0
We add all the numbers together, and all the variables
0.4x-(0.8)=0
We add all the numbers together, and all the variables
0.4x-0.8=0
We move all terms containing x to the left, all other terms to the right
0.4x=0.8
x=0.8/0.4
x=2
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