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-20+3.33x+x=30
We move all terms to the left:
-20+3.33x+x-(30)=0
We add all the numbers together, and all the variables
4.33x-50=0
We move all terms containing x to the left, all other terms to the right
4.33x=50
x=50/4.33
x=11+1/1.8270042194093
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