-5+8a=21

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Solution for -5+8a=21 equation: 



-5+8a=21

We move all terms to the left:

-5+8a-(21)=0

We add all the numbers together, and all the variables

8a-26=0

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

8a=26

a=26/8

a=3+1/4

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