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x-2.5=4.0
We move all terms to the left:
x-2.5-(4.0)=0
We add all the numbers together, and all the variables
x-2.5-4=0
We add all the numbers together, and all the variables
x-6.5=0
We move all terms containing x to the left, all other terms to the right
x=6.5
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