9(-9)=

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Solution for 9(-9)= equation:


9(-9)=0

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

Reorder the terms in parentheses
+(-81)=0

Remove unnecessary parentheses
-81=0

We move all terms containing  to the left and all other terms to the right. 
0=0+81

We simplify left and right side of the equation. 
0=+81

0=81

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

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