3a+9=63

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Solution for 3a+9=63 equation: 



3a+9=63

We move all terms to the left:

3a+9-(63)=0

We add all the numbers together, and all the variables

3a-54=0

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

3a=54

a=54/3

a=18

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