2-a+8a=23

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Solution for 2-a+8a=23 equation: 



2-a+8a=23

We move all terms to the left:

2-a+8a-(23)=0

We add all the numbers together, and all the variables

7a-21=0

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

7a=21

a=21/7

a=3

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