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0.8(1-0.8)=x
We move all terms to the left:
0.8(1-0.8)-(x)=0
We add all the numbers together, and all the variables
-x+0.8(0.2)=0
We add all the numbers together, and all the variables
-1x+0.16=0
We move all terms containing x to the left, all other terms to the right
-x=-0.16
x=-0.16/-1
x=0.16/1
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