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6.24x+12=30.75
We move all terms to the left:
6.24x+12-(30.75)=0
We add all the numbers together, and all the variables
6.24x-18.75=0
We move all terms containing x to the left, all other terms to the right
6.24x=18.75
x=18.75/6.24
x=3+0.030000000000001/6.24
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