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3.8x=-6.4
We move all terms to the left:
3.8x-(-6.4)=0
We add all the numbers together, and all the variables
3.8x+6.4=0
We move all terms containing x to the left, all other terms to the right
3.8x=-6.4
x=-6.4/3.8
x=-1+2.6/3.8
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