3+x(x)=12

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Solution for 3+x(x)=12 equation: 



3+x(x)=12

We move all terms to the left:

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

We add all the numbers together, and all the variables

xx-9=0

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

xx=9

x=9/1

x=9

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