-2(9--2)+9=

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Solution for -2(9--2)+9= equation:


-2(9--2)+9=0

We simplify the equation to the form, which is simple to understand 
-2(9+2)+9=0

Reorder the terms in parentheses
+(-22)+9=0

Remove unnecessary parentheses
-22+9=0

We move all terms containing  to the left and all other terms to the right. 
0=0+22-9

We simplify left and right side of the equation. 
0=+13

0=13

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

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