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X+300=1.2X
We move all terms to the left:
X+300-(1.2X)=0
We add all the numbers together, and all the variables
X-(+1.2X)+300=0
We get rid of parentheses
X-1.2X+300=0
We add all the numbers together, and all the variables
-0.2X+300=0
We move all terms containing X to the left, all other terms to the right
-0.2X=-300
X=-300/-0.2
X=+1500
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