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-x/2=-4.5
We move all terms to the left:
-x/2-(-4.5)=0
We add all the numbers together, and all the variables
-x/2+4.5=0
We multiply all the terms by the denominator
-x+(4.5)*2=0
We add all the numbers together, and all the variables
-1x+9=0
We move all terms containing x to the left, all other terms to the right
-x=-9
x=-9/-1
x=+9
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