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x-0.25x=2.25
We move all terms to the left:
x-0.25x-(2.25)=0
We add all the numbers together, and all the variables
0.75x-2.25=0
We move all terms containing x to the left, all other terms to the right
0.75x=2.25
x=2.25/0.75
x=3
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