12+4=3+4+x

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



12+4=3+4+x

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(x+7)+12+4=0

We add all the numbers together, and all the variables

-(x+7)+16=0

We get rid of parentheses

-x-7+16=0

We add all the numbers together, and all the variables

-1x+9=0

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

-x=-9

x=-9/-1

x=+9

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