-23=-6a-9a

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Solution for -23=-6a-9a equation: 



-23=-6a-9a

We move all terms to the left:

-23-(-6a-9a)=0

We add all the numbers together, and all the variables

-(-15a)-23=0

We get rid of parentheses

15a-23=0

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

15a=23

a=23/15

a=1+8/15

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