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-6.4x-11.8=12
We move all terms to the left:
-6.4x-11.8-(12)=0
We add all the numbers together, and all the variables
-6.4x-23.8=0
We move all terms containing x to the left, all other terms to the right
-6.4x=23.8
x=23.8/-6.4
x=-3+1.7692307692308/2.4615384615385
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