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-3.8+0.8x=-5.4
We move all terms to the left:
-3.8+0.8x-(-5.4)=0
We add all the numbers together, and all the variables
0.8x+1.6=0
We move all terms containing x to the left, all other terms to the right
0.8x=-1.6
x=-1.6/0.8
x=-2
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