(x)(x)-3=12

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



(x)(x)-3=12

We move all terms to the left:

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

We add all the numbers together, and all the variables

xx-15=0

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

xx=15

x=15/1

x=15

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