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(820000+x)/(42-30)=95800
We move all terms to the left:
(820000+x)/(42-30)-(95800)=0
We add all the numbers together, and all the variables
(x+820000)/12-95800=0
We multiply all the terms by the denominator
(x+820000)-95800*12=0
We add all the numbers together, and all the variables
(x+820000)-1149600=0
We get rid of parentheses
x+820000-1149600=0
We add all the numbers together, and all the variables
x-329600=0
We move all terms containing x to the left, all other terms to the right
x=329600
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