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(600+5x)/(300+x)=4.5
We move all terms to the left:
(600+5x)/(300+x)-(4.5)=0
Domain of the equation: (300+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!=-300
x∈R
(5x+600)/(x+300)-(4.5)=0
We add all the numbers together, and all the variables
(5x+600)/(x+300)-4.5=0
We multiply all the terms by the denominator
(5x+600)-(4.5)*(x+300)=0
We get rid of parentheses
5x-(4.5)*(x+300)+600=0
We move all terms containing x to the left, all other terms to the right
5x-(4.5)*(x+300)=-600
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