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31x=471.5
We move all terms to the left:
31x-(471.5)=0
We add all the numbers together, and all the variables
31x-471.5=0
We move all terms containing x to the left, all other terms to the right
31x=471.5
x=471.5/31
x=15+4.3333333333333/20.666666666667
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