82-28-a=7(a-4)

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Solution for 82-28-a=7(a-4) equation: 



82-28-a=7(a-4)

We move all terms to the left:

82-28-a-(7(a-4))=0

We add all the numbers together, and all the variables

-1a-(7(a-4))+54=0



We calculate terms in parentheses: -(7(a-4)), so:

7(a-4)

We multiply parentheses

7a-28

Back to the equation:

-(7a-28)



We get rid of parentheses

-1a-7a+28+54=0

We add all the numbers together, and all the variables

-8a+82=0

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

-8a=-82

a=-82/-8

a=10+1/4

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