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x+0.1x=1900
We move all terms to the left:
x+0.1x-(1900)=0
We add all the numbers together, and all the variables
1.1x-1900=0
We move all terms containing x to the left, all other terms to the right
1.1x=1900
x=1900/1.1
x=1727+0.29999999999995/1.1
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