25=-8+5(a-9)

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Solution for 25=-8+5(a-9) equation: 



25=-8+5(a-9)

We move all terms to the left:

25-(-8+5(a-9))=0



We calculate terms in parentheses: -(-8+5(a-9)), so:

-8+5(a-9)

determiningTheFunctionDomain
5(a-9)-8

We multiply parentheses

5a-45-8

We add all the numbers together, and all the variables

5a-53

Back to the equation:

-(5a-53)



We get rid of parentheses

-5a+53+25=0

We add all the numbers together, and all the variables

-5a+78=0

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

-5a=-78

a=-78/-5

a=15+3/5

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