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-1.9=0.2+0.8x
We move all terms to the left:
-1.9-(0.2+0.8x)=0
We add all the numbers together, and all the variables
-(0.8x+0.2)-1.9=0
We get rid of parentheses
-0.8x-0.2-1.9=0
We add all the numbers together, and all the variables
-0.8x-2.1=0
We move all terms containing x to the left, all other terms to the right
-0.8x=2.1
x=2.1/-0.8
x=-2+0.5/0.8
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