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5.5x-3.4+8.5x=442
We move all terms to the left:
5.5x-3.4+8.5x-(442)=0
We add all the numbers together, and all the variables
14x-445.4=0
We move all terms containing x to the left, all other terms to the right
14x=445.4
x=445.4/14
x=31+8.1428571428573/10
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