-107=3(7a-1)+5a

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Solution for -107=3(7a-1)+5a equation: 



-107=3(7a-1)+5a

We move all terms to the left:

-107-(3(7a-1)+5a)=0



We calculate terms in parentheses: -(3(7a-1)+5a), so:

3(7a-1)+5a

We add all the numbers together, and all the variables

5a+3(7a-1)

We multiply parentheses

5a+21a-3

We add all the numbers together, and all the variables

26a-3

Back to the equation:

-(26a-3)



We get rid of parentheses

-26a+3-107=0

We add all the numbers together, and all the variables

-26a-104=0

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

-26a=104

a=104/-26

a=-4

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