2a-20.1=a+2.9

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Solution for 2a-20.1=a+2.9 equation: 



2a-20.1=a+2.9

We move all terms to the left:

2a-20.1-(a+2.9)=0

We get rid of parentheses

2a-a-2.9-20.1=0

We add all the numbers together, and all the variables

a-23=0

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

a=23

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