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2+12x=21.68
We move all terms to the left:
2+12x-(21.68)=0
We add all the numbers together, and all the variables
12x-19.68=0
We move all terms containing x to the left, all other terms to the right
12x=19.68
x=19.68/12
x=1+4.5714285714286/7.1428571428571
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