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X+0.3X=1100
We move all terms to the left:
X+0.3X-(1100)=0
We add all the numbers together, and all the variables
1.3X-1100=0
We move all terms containing X to the left, all other terms to the right
1.3X=1100
X=1100/1.3
X=846+0.20000000000005/1.3
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