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-3.x-5.9x=223.1
We move all terms to the left:
-3.x-5.9x-(223.1)=0
We add all the numbers together, and all the variables
-8.9x-223.1=0
We move all terms containing x to the left, all other terms to the right
-8.9x=223.1
x=223.1/-8.9
x=-25+0.59999999999999/8.9
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