-21-8a=-1-6(4-5a)

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Solution for -21-8a=-1-6(4-5a) equation: 



-21-8a=-1-6(4-5a)

We move all terms to the left:

-21-8a-(-1-6(4-5a))=0

We add all the numbers together, and all the variables

-8a-(-1-6(-5a+4))-21=0



We calculate terms in parentheses: -(-1-6(-5a+4)), so:

-1-6(-5a+4)

determiningTheFunctionDomain
-6(-5a+4)-1

We multiply parentheses

30a-24-1

We add all the numbers together, and all the variables

30a-25

Back to the equation:

-(30a-25)



We get rid of parentheses

-8a-30a+25-21=0

We add all the numbers together, and all the variables

-38a+4=0

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

-38a=-4

a=-4/-38

a=2/19

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