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2.5-0.04x=0.66
We move all terms to the left:
2.5-0.04x-(0.66)=0
We add all the numbers together, and all the variables
-0.04x+1.84=0
We move all terms containing x to the left, all other terms to the right
-0.04x=-1.84
x=-1.84/-0.04
x=+46
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