-23=2a-10+9

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Solution for -23=2a-10+9 equation: 



-23=2a-10+9

We move all terms to the left:

-23-(2a-10+9)=0

We add all the numbers together, and all the variables

-(2a-1)-23=0

We get rid of parentheses

-2a+1-23=0

We add all the numbers together, and all the variables

-2a-22=0

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

-2a=22

a=22/-2

a=-11

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