2a=20-8a

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Solution for 2a=20-8a equation: 



2a=20-8a

We move all terms to the left:

2a-(20-8a)=0

We add all the numbers together, and all the variables

2a-(-8a+20)=0

We get rid of parentheses

2a+8a-20=0

We add all the numbers together, and all the variables

10a-20=0

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

10a=20

a=20/10

a=2

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