-29-a=7(3+7a)

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Solution for -29-a=7(3+7a) equation: 



-29-a=7(3+7a)

We move all terms to the left:

-29-a-(7(3+7a))=0

We add all the numbers together, and all the variables

-a-(7(7a+3))-29=0

We add all the numbers together, and all the variables

-1a-(7(7a+3))-29=0



We calculate terms in parentheses: -(7(7a+3)), so:

7(7a+3)

We multiply parentheses

49a+21

Back to the equation:

-(49a+21)



We get rid of parentheses

-1a-49a-21-29=0

We add all the numbers together, and all the variables

-50a-50=0

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

-50a=50

a=50/-50

a=-1

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