9+2=12-aa=

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Solution for 9+2=12-aa= equation: 



9+2=12-aa=

We move all terms to the left:

9+2-(12-aa)=0

We add all the numbers together, and all the variables

-(-aa+12)+9+2=0

We add all the numbers together, and all the variables

-(-aa+12)+11=0

We get rid of parentheses

aa-12+11=0

We add all the numbers together, and all the variables

aa-1=0

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

aa=1

a=1/1

a=1

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