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(x-40)/x=0.30
We move all terms to the left:
(x-40)/x-(0.30)=0
Domain of the equation: x!=0We add all the numbers together, and all the variables
x∈R
(x-40)/x-(0.3)=0
We add all the numbers together, and all the variables
(x-40)/x-0.3=0
We multiply all the terms by the denominator
(x-40)-(0.3)*x=0
We multiply parentheses
(x-40)-0.3x=0
We get rid of parentheses
x-0.3x-40=0
We add all the numbers together, and all the variables
0.7x-40=0
We move all terms containing x to the left, all other terms to the right
0.7x=40
x=40/0.7
x=57+0.1/0.7
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