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-x/2+9=1/2
We move all terms to the left:
-x/2+9-(1/2)=0
We add all the numbers together, and all the variables
-x/2+9-(+1/2)=0
We get rid of parentheses
-x/2+9-1/2=0
We multiply all the terms by the denominator
-x-1+9*2=0
We add all the numbers together, and all the variables
-1x+17=0
We move all terms containing x to the left, all other terms to the right
-x=-17
x=-17/-1
x=+17
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