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0.5x-4=0.2x-1
We move all terms to the left:
0.5x-4-(0.2x-1)=0
We get rid of parentheses
0.5x-0.2x+1-4=0
We add all the numbers together, and all the variables
0.3x-3=0
We move all terms containing x to the left, all other terms to the right
0.3x=3
x=3/0.3
x=10
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