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0.80x=6.40
We move all terms to the left:
0.80x-(6.40)=0
We add all the numbers together, and all the variables
0.80x-(6.4)=0
We add all the numbers together, and all the variables
0.80x-6.4=0
We move all terms containing x to the left, all other terms to the right
0.80x=6.4
x=6.4/0.80
x=8
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