3+18a=15

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Solution for 3+18a=15 equation: 



3+18a=15

We move all terms to the left:

3+18a-(15)=0

We add all the numbers together, and all the variables

18a-12=0

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

18a=12

a=12/18

a=2/3

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