-123=-3-5(8+2a)

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Solution for -123=-3-5(8+2a) equation: 



-123=-3-5(8+2a)

We move all terms to the left:

-123-(-3-5(8+2a))=0

We add all the numbers together, and all the variables

-(-3-5(2a+8))-123=0



We calculate terms in parentheses: -(-3-5(2a+8)), so:

-3-5(2a+8)

determiningTheFunctionDomain
-5(2a+8)-3

We multiply parentheses

-10a-40-3

We add all the numbers together, and all the variables

-10a-43

Back to the equation:

-(-10a-43)



We get rid of parentheses

10a+43-123=0

We add all the numbers together, and all the variables

10a-80=0

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

10a=80

a=80/10

a=8

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