20+12a=4a

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Solution for 20+12a=4a equation: 



20+12a=4a

We move all terms to the left:

20+12a-(4a)=0

We add all the numbers together, and all the variables

8a+20=0

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

8a=-20

a=-20/8

a=-2+1/2

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