a+6.84=21.9

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Solution for a+6.84=21.9 equation: 



a+6.84=21.9

We move all terms to the left:

a+6.84-(21.9)=0

We add all the numbers together, and all the variables

a-15.06=0

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

a=15.06

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