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0.3=x1.9
We move all terms to the left:
0.3-(x1.9)=0
We add all the numbers together, and all the variables
-(+x1.9)+0.3=0
We get rid of parentheses
-x1.9+0.3=0
We move all terms containing x to the left, all other terms to the right
-x1.9=-0.3
x=-0.3/1
x=-0.3
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