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(84-x)/84=0.2
We move all terms to the left:
(84-x)/84-(0.2)=0
We add all the numbers together, and all the variables
(-1x+84)/84-(0.2)=0
We add all the numbers together, and all the variables
(-1x+84)/84-0.2=0
We multiply all the terms by the denominator
(-1x+84)-(0.2)*84=0
We add all the numbers together, and all the variables
(-1x+84)-16.8=0
We get rid of parentheses
-1x+84-16.8=0
We add all the numbers together, and all the variables
-1x+67.2=0
We move all terms containing x to the left, all other terms to the right
-x=-67.2
x=-67.2/-1
x=67+0.2/1
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