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