8=12+x.x

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Solution for 8=12+x.x equation: 



8=12+x.x

We move all terms to the left:

8-(12+x.x)=0

We add all the numbers together, and all the variables

-(x.x+12)+8=0

We get rid of parentheses

-x.x-12+8=0

We add all the numbers together, and all the variables

-x.x-4=0

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

-x.x=4

x=4/1

x=4

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