-2.1+a=5.8

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Solution for -2.1+a=5.8 equation: 



-2.1+a=5.8

We move all terms to the left:

-2.1+a-(5.8)=0

We add all the numbers together, and all the variables

a-7.9=0

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

a=7.9

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