31-3x=13+6x

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Solution for 31-3x=13+6x equation: 



31-3x=13+6x

We move all terms to the left:

31-3x-(13+6x)=0

We add all the numbers together, and all the variables

-3x-(6x+13)+31=0

We get rid of parentheses

-3x-6x-13+31=0

We add all the numbers together, and all the variables

-9x+18=0

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

-9x=-18

x=-18/-9

x=+2

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