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-1.8+2.7x=0.9
We move all terms to the left:
-1.8+2.7x-(0.9)=0
We add all the numbers together, and all the variables
2.7x-2.7=0
We move all terms containing x to the left, all other terms to the right
2.7x=2.7
x=2.7/2.7
x=1
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