12.5+x=3.1

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Solution for 12.5+x=3.1 equation: 



12.5+x=3.1

We move all terms to the left:

12.5+x-(3.1)=0

We add all the numbers together, and all the variables

x+9.4=0

We move all terms containing x to the left, all other terms to the right

x=-9.4

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