12+(5-9)=

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Solution for 12+(5-9)= equation:


12+(5-9)=0

We simplify the equation to the form, which is simple to understand 
12+(5-9)=0

Remove unnecessary parentheses
+12-4=0

We move all terms containing  to the left and all other terms to the right. 
0=0-12+4

We simplify left and right side of the equation. 
0=-8

0=-8

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

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