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3-2x-4.5=3
We move all terms to the left:
3-2x-4.5-(3)=0
We add all the numbers together, and all the variables
-2x-4.5=0
We move all terms containing x to the left, all other terms to the right
-2x=4.5
x=4.5/-2
x=-2+0.5/2
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