6a-12=-20+2a

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Solution for 6a-12=-20+2a equation: 



6a-12=-20+2a

We move all terms to the left:

6a-12-(-20+2a)=0

We add all the numbers together, and all the variables

6a-(2a-20)-12=0

We get rid of parentheses

6a-2a+20-12=0

We add all the numbers together, and all the variables

4a+8=0

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

4a=-8

a=-8/4

a=-2

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