a+(9-2a)=9-a

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



a+(9-2a)=9-a

We move all terms to the left:

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

We add all the numbers together, and all the variables

a+(-2a+9)-(-1a+9)=0

We get rid of parentheses

a-2a+1a+9-9=0

We add all the numbers together, and all the variables

=0

a=0/1

a=0

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