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9.9x=-76.23
We move all terms to the left:
9.9x-(-76.23)=0
We add all the numbers together, and all the variables
9.9x+76.23=0
We move all terms containing x to the left, all other terms to the right
9.9x=-76.23
x=-76.23/9.9
x=-7+1.76335877863/2.51908396947
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