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.3907=x/40
We move all terms to the left:
.3907-(x/40)=0
We add all the numbers together, and all the variables
-(+x/40)+.3907=0
We add all the numbers together, and all the variables
-(+x/40)+0.3907=0
We get rid of parentheses
-x/40+0.3907=0
We multiply all the terms by the denominator
-x+(0.3907)*40=0
We add all the numbers together, and all the variables
-1x+15.628=0
We move all terms containing x to the left, all other terms to the right
-x=-15.628
x=-15.628/-1
x=15+0.628/1
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