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0.8x+3.1=5.3
We move all terms to the left:
0.8x+3.1-(5.3)=0
We add all the numbers together, and all the variables
0.8x-2.2=0
We move all terms containing x to the left, all other terms to the right
0.8x=2.2
x=2.2/0.8
x=2+0.6/0.8
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