-4a-21-7=11

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Solution for -4a-21-7=11 equation: 



-4a-21-7=11

We move all terms to the left:

-4a-21-7-(11)=0

We add all the numbers together, and all the variables

-4a-39=0

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

-4a=39

a=39/-4

a=-9+3/4

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