(2a-21.8)=(a-2.5)

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Solution for (2a-21.8)=(a-2.5) equation: 



(2a-21.8)=(a-2.5)

We move all terms to the left:

(2a-21.8)-((a-2.5))=0

We get rid of parentheses

2a-((a-2.5))-21.8=0



We calculate terms in parentheses: -((a-2.5)), so:

(a-2.5)

We get rid of parentheses

a-2.5

Back to the equation:

-(a-2.5)



We get rid of parentheses

2a-a+2.5-21.8=0

We add all the numbers together, and all the variables

a-19.3=0

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

a=19.3

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