220-a=21-(.88*a)

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Solution for 220-a=21-(.88*a) equation: 



220-a=21-(.88a)

We move all terms to the left:

220-a-(21-(.88a))=0

We add all the numbers together, and all the variables

-a-(21-(+.88a))+220=0

We add all the numbers together, and all the variables

-1a-(21-(+.88a))+220=0



We calculate terms in parentheses: -(21-(+.88a)), so:

21-(+.88a)

determiningTheFunctionDomain
-(+.88a)+21

We get rid of parentheses

-.88a+21

We add all the numbers together, and all the variables

-0.88a+21

Back to the equation:

-(-0.88a+21)



We get rid of parentheses

-1a+0.88a-21+220=0

We add all the numbers together, and all the variables

-0.12a+199=0

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

-0.12a=-199

a=-199/-0.12

a=1658+0.04000000000002/0.12

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