104=-8(a-7)

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Solution for 104=-8(a-7) equation: 



104=-8(a-7)

We move all terms to the left:

104-(-8(a-7))=0



We calculate terms in parentheses: -(-8(a-7)), so:

-8(a-7)

We multiply parentheses

-8a+56

Back to the equation:

-(-8a+56)



We get rid of parentheses

8a-56+104=0

We add all the numbers together, and all the variables

8a+48=0

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

8a=-48

a=-48/8

a=-6

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