11+40a=-9

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Solution for 11+40a=-9 equation: 



11+40a=-9

We move all terms to the left:

11+40a-(-9)=0

We add all the numbers together, and all the variables

40a+20=0

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

40a=-20

a=-20/40

a=-1/2

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