20=-12a-8

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Solution for 20=-12a-8 equation: 



20=-12a-8

We move all terms to the left:

20-(-12a-8)=0

We get rid of parentheses

12a+8+20=0

We add all the numbers together, and all the variables

12a+28=0

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

12a=-28

a=-28/12

a=-2+1/3

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