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3.69=3x+1
We move all terms to the left:
3.69-(3x+1)=0
We get rid of parentheses
-3x-1+3.69=0
We add all the numbers together, and all the variables
-3x+2.69=0
We move all terms containing x to the left, all other terms to the right
-3x=-2.69
x=-2.69/-3
x=2.69/3
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