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30.000+20x=80.000
We move all terms to the left:
30.000+20x-(80.000)=0
We add all the numbers together, and all the variables
20x+30.000-80=0
We add all the numbers together, and all the variables
20x-50=0
We move all terms containing x to the left, all other terms to the right
20x=50
x=50/20
x=2+1/2
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