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X=4.5X+18
We move all terms to the left:
X-(4.5X+18)=0
We get rid of parentheses
X-4.5X-18=0
We add all the numbers together, and all the variables
-3.5X-18=0
We move all terms containing X to the left, all other terms to the right
-3.5X=18
X=18/-3.5
X=-5+0.5/3.5
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