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30=x/2
We move all terms to the left:
30-(x/2)=0
We add all the numbers together, and all the variables
-(+x/2)+30=0
We get rid of parentheses
-x/2+30=0
We multiply all the terms by the denominator
-x+30*2=0
We add all the numbers together, and all the variables
-1x+60=0
We move all terms containing x to the left, all other terms to the right
-x=-60
x=-60/-1
x=+60
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