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0.5x+6.4=x
We move all terms to the left:
0.5x+6.4-(x)=0
We add all the numbers together, and all the variables
-0.5x+6.4=0
We move all terms containing x to the left, all other terms to the right
-0.5x=-6.4
x=-6.4/-0.5
x=12+0.4/0.5
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