8-7a=29

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Solution for 8-7a=29 equation: 



8-7a=29

We move all terms to the left:

8-7a-(29)=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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