3a=0,21

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Solution for 3a=0,21 equation: 



3a=0.21

We move all terms to the left:

3a-(0.21)=0

We add all the numbers together, and all the variables

3a-0.21=0

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

3a=0.21

a=0.21/3

a=0.21/3

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