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-3.1+2x=11.1
We move all terms to the left:
-3.1+2x-(11.1)=0
We add all the numbers together, and all the variables
2x-14.2=0
We move all terms containing x to the left, all other terms to the right
2x=14.2
x=14.2/2
x=7+0.2/2
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