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-0.8x=2.8
We move all terms to the left:
-0.8x-(2.8)=0
We add all the numbers together, and all the variables
-0.8x-2.8=0
We move all terms containing x to the left, all other terms to the right
-0.8x=2.8
x=2.8/-0.8
x=-3+0.4/0.8
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