12+x+x+x=51-x-x-x

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Solution for 12+x+x+x=51-x-x-x equation: 



12+x+x+x=51-x-x-x

We move all terms to the left:

12+x+x+x-(51-x-x-x)=0

We add all the numbers together, and all the variables

x+x+x-(-3x+51)+12=0

We add all the numbers together, and all the variables

3x-(-3x+51)+12=0

We get rid of parentheses

3x+3x-51+12=0

We add all the numbers together, and all the variables

6x-39=0

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

6x=39

x=39/6

x=6+1/2

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