-21-8a=-1+6(9-5a)

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Solution for -21-8a=-1+6(9-5a) equation: 



-21-8a=-1+6(9-5a)

We move all terms to the left:

-21-8a-(-1+6(9-5a))=0

We add all the numbers together, and all the variables

-8a-(-1+6(-5a+9))-21=0



We calculate terms in parentheses: -(-1+6(-5a+9)), so:

-1+6(-5a+9)

determiningTheFunctionDomain
6(-5a+9)-1

We multiply parentheses

-30a+54-1

We add all the numbers together, and all the variables

-30a+53

Back to the equation:

-(-30a+53)



We get rid of parentheses

-8a+30a-53-21=0

We add all the numbers together, and all the variables

22a-74=0

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

22a=74

a=74/22

a=3+4/11

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