(3+9)=

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Solution for (3+9)= equation:


(3+9)=0

We simplify the equation to the form, which is simple to understand 
(3+9)=0

Remove unnecessary parentheses
+12=0

We move all terms containing  to the left and all other terms to the right. 
0=0-12

We simplify left and right side of the equation. 
0=-12

0=-12

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

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