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(x/2)-1=9
We move all terms to the left:
(x/2)-1-(9)=0
We add all the numbers together, and all the variables
(+x/2)-1-9=0
We add all the numbers together, and all the variables
(+x/2)-10=0
We get rid of parentheses
x/2-10=0
We multiply all the terms by the denominator
x-10*2=0
We add all the numbers together, and all the variables
x-20=0
We move all terms containing x to the left, all other terms to the right
x=20
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