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3.75-0.5x=9
We move all terms to the left:
3.75-0.5x-(9)=0
We add all the numbers together, and all the variables
-0.5x-5.25=0
We move all terms containing x to the left, all other terms to the right
-0.5x=5.25
x=5.25/-0.5
x=-10+0.25/0.5
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