9a+5a-10a-a=9

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Solution for 9a+5a-10a-a=9 equation: 



9a+5a-10a-a=9

We move all terms to the left:

9a+5a-10a-a-(9)=0

We add all the numbers together, and all the variables

3a-9=0

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

3a=9

a=9/3

a=3

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