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84/12=x/28
We move all terms to the left:
84/12-(x/28)=0
We add all the numbers together, and all the variables
-(+x/28)+84/12=0
We add all the numbers together, and all the variables
-(+x/28)+7=0
We get rid of parentheses
-x/28+7=0
We multiply all the terms by the denominator
-x+7*28=0
We add all the numbers together, and all the variables
-1x+196=0
We move all terms containing x to the left, all other terms to the right
-x=-196
x=-196/-1
x=+196
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