4a+9=-11

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Solution for 4a+9=-11 equation: 



4a+9=-11

We move all terms to the left:

4a+9-(-11)=0

We add all the numbers together, and all the variables

4a+20=0

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

4a=-20

a=-20/4

a=-5

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