9x+31=79-3x

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Solution for 9x+31=79-3x equation: 



9x+31=79-3x

We move all terms to the left:

9x+31-(79-3x)=0

We add all the numbers together, and all the variables

9x-(-3x+79)+31=0

We get rid of parentheses

9x+3x-79+31=0

We add all the numbers together, and all the variables

12x-48=0

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

12x=48

x=48/12

x=4

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