3x+-4=12x-31

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Solution for 3x+-4=12x-31 equation: 



3x+-4=12x-31

We move all terms to the left:

3x+-4-(12x-31)=0

We add all the numbers together, and all the variables

3x-(12x-31)=0

We get rid of parentheses

3x-12x+31=0

We add all the numbers together, and all the variables

-9x+31=0

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

-9x=-31

x=-31/-9

x=3+4/9

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