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86.6-0.5x=80.8
We move all terms to the left:
86.6-0.5x-(80.8)=0
We add all the numbers together, and all the variables
-0.5x+5.8=0
We move all terms containing x to the left, all other terms to the right
-0.5x=-5.8
x=-5.8/-0.5
x=11+0.3/0.5
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