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27.50+12x=407.50
We move all terms to the left:
27.50+12x-(407.50)=0
We add all the numbers together, and all the variables
12x+27.50-(407.5)=0
We add all the numbers together, and all the variables
12x-380=0
We move all terms containing x to the left, all other terms to the right
12x=380
x=380/12
x=31+2/3
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