4a+9+a=a

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Solution for 4a+9+a=a equation: 



4a+9+a=a

We move all terms to the left:

4a+9+a-(a)=0

We add all the numbers together, and all the variables

4a+9=0

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

4a=-9

a=-9/4

a=-2+1/4

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