31=47-x

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Solution for 31=47-x equation: 



31=47-x

We move all terms to the left:

31-(47-x)=0

We add all the numbers together, and all the variables

-(-1x+47)+31=0

We get rid of parentheses

1x-47+31=0

We add all the numbers together, and all the variables

x-16=0

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

x=16

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