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8.3x-12.1=46
We move all terms to the left:
8.3x-12.1-(46)=0
We add all the numbers together, and all the variables
8.3x-58.1=0
We move all terms containing x to the left, all other terms to the right
8.3x=58.1
x=58.1/8.3
x=7+-7.105427357601E-15/8.3
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