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0.7=0.4+x-0.3
We move all terms to the left:
0.7-(0.4+x-0.3)=0
We add all the numbers together, and all the variables
-(x+0.1)+0.7=0
We get rid of parentheses
-x-0.1+0.7=0
We add all the numbers together, and all the variables
-1x+0.6=0
We move all terms containing x to the left, all other terms to the right
-x=-0.6
x=-0.6/-1
x=0.6/1
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