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X+14.25=4X+12
We move all terms to the left:
X+14.25-(4X+12)=0
We get rid of parentheses
X-4X-12+14.25=0
We add all the numbers together, and all the variables
-3X+2.25=0
We move all terms containing X to the left, all other terms to the right
-3X=-2.25
X=-2.25/-3
X=2.25/3
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