7a=(a-4)

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



7a=(a-4)

We move all terms to the left:

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



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

(a-4)

We get rid of parentheses

a-4

Back to the equation:

-(a-4)



We get rid of parentheses

7a-a+4=0

We add all the numbers together, and all the variables

6a+4=0

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

6a=-4

a=-4/6

a=-2/3

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