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12.7x=-3.8
We move all terms to the left:
12.7x-(-3.8)=0
We add all the numbers together, and all the variables
12.7x+3.8=0
We move all terms containing x to the left, all other terms to the right
12.7x=-3.8
x=-3.8/12.7
x=-1/3.3421052631579
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