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-1.7-3x=2.8
We move all terms to the left:
-1.7-3x-(2.8)=0
We add all the numbers together, and all the variables
-3x-4.5=0
We move all terms containing x to the left, all other terms to the right
-3x=4.5
x=4.5/-3
x=-1+1/2
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