231=7(1+8a)

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Solution for 231=7(1+8a) equation: 



231=7(1+8a)

We move all terms to the left:

231-(7(1+8a))=0

We add all the numbers together, and all the variables

-(7(8a+1))+231=0



We calculate terms in parentheses: -(7(8a+1)), so:

7(8a+1)

We multiply parentheses

56a+7

Back to the equation:

-(56a+7)



We get rid of parentheses

-56a-7+231=0

We add all the numbers together, and all the variables

-56a+224=0

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

-56a=-224

a=-224/-56

a=+4

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