-7-5a=7(7a-1)

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Solution for -7-5a=7(7a-1) equation: 



-7-5a=7(7a-1)

We move all terms to the left:

-7-5a-(7(7a-1))=0



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

7(7a-1)

We multiply parentheses

49a-7

Back to the equation:

-(49a-7)



We get rid of parentheses

-5a-49a+7-7=0

We add all the numbers together, and all the variables

-54a=0

a=0/-54

a=0

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