-23=-a+7+6a

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Solution for -23=-a+7+6a equation: 



-23=-a+7+6a

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(5a+7)-23=0

We get rid of parentheses

-5a-7-23=0

We add all the numbers together, and all the variables

-5a-30=0

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

-5a=30

a=30/-5

a=-6

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