-1-3(7a+7)=23-6a

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Solution for -1-3(7a+7)=23-6a equation: 



-1-3(7a+7)=23-6a

We move all terms to the left:

-1-3(7a+7)-(23-6a)=0

We add all the numbers together, and all the variables

-3(7a+7)-(-6a+23)-1=0

We multiply parentheses

-21a-(-6a+23)-21-1=0

We get rid of parentheses

-21a+6a-23-21-1=0

We add all the numbers together, and all the variables

-15a-45=0

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

-15a=45

a=45/-15

a=-3

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