-127=7(-3a-1)+6

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Solution for -127=7(-3a-1)+6 equation: 



-127=7(-3a-1)+6

We move all terms to the left:

-127-(7(-3a-1)+6)=0



We calculate terms in parentheses: -(7(-3a-1)+6), so:

7(-3a-1)+6

We multiply parentheses

-21a-7+6

We add all the numbers together, and all the variables

-21a-1

Back to the equation:

-(-21a-1)



We get rid of parentheses

21a+1-127=0

We add all the numbers together, and all the variables

21a-126=0

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

21a=126

a=126/21

a=6

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