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3.5-0.04x=0.82
We move all terms to the left:
3.5-0.04x-(0.82)=0
We add all the numbers together, and all the variables
-0.04x+2.68=0
We move all terms containing x to the left, all other terms to the right
-0.04x=-2.68
x=-2.68/-0.04
x=+67
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