9-2a=9-a

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Solution for 9-2a=9-a equation:



9-2a=9-a
We move all terms to the left:
9-2a-(9-a)=0
We add all the numbers together, and all the variables
-2a-(-1a+9)+9=0
We get rid of parentheses
-2a+1a-9+9=0
We add all the numbers together, and all the variables
-a=0
a=0/-1
a=0

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