9a+3A+7A=27

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Solution for 9a+3A+7A=27 equation: 



9a+3+7=27

We move all terms to the left:

9a+3+7-(27)=0

We add all the numbers together, and all the variables

9a-17=0

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

9a=17

a=17/9

a=1+8/9

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