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3.5x+2=5.5
We move all terms to the left:
3.5x+2-(5.5)=0
We add all the numbers together, and all the variables
3.5x-3.5=0
We move all terms containing x to the left, all other terms to the right
3.5x=3.5
x=3.5/3.5
x=1
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