-8a+11=21

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Solution for -8a+11=21 equation: 



-8a+11=21

We move all terms to the left:

-8a+11-(21)=0

We add all the numbers together, and all the variables

-8a-10=0

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

-8a=10

a=10/-8

a=-1+1/4

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