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(6+x)/(40+x)=0.35
We move all terms to the left:
(6+x)/(40+x)-(0.35)=0
Domain of the equation: (40+x)!=0We add all the numbers together, and all the variables
We move all terms containing x to the left, all other terms to the right
x!=-40
x∈R
(x+6)/(x+40)-(0.35)=0
We add all the numbers together, and all the variables
(x+6)/(x+40)-0.35=0
We multiply all the terms by the denominator
(x+6)-(0.35)*(x+40)=0
We get rid of parentheses
x-(0.35)*(x+40)+6=0
We move all terms containing x to the left, all other terms to the right
x-(0.35)*(x+40)=-6
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