-25=4a+16-(a-4)

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Solution for -25=4a+16-(a-4) equation: 



-25=4a+16-(a-4)

We move all terms to the left:

-25-(4a+16-(a-4))=0



We calculate terms in parentheses: -(4a+16-(a-4)), so:

4a+16-(a-4)

determiningTheFunctionDomain
4a-(a-4)+16

We get rid of parentheses

4a-a+4+16

We add all the numbers together, and all the variables

3a+20

Back to the equation:

-(3a+20)



We get rid of parentheses

-3a-20-25=0

We add all the numbers together, and all the variables

-3a-45=0

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

-3a=45

a=45/-3

a=-15

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