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0.4(x-4)+0.6x=0
We add all the numbers together, and all the variables
0.6x+0.4(x-4)=0
We multiply parentheses
0.6x+0.4x-1.6=0
We add all the numbers together, and all the variables
x-1.6=0
We move all terms containing x to the left, all other terms to the right
x=1.6
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