12-2a=2a+4

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Solution for 12-2a=2a+4 equation: 



12-2a=2a+4

We move all terms to the left:

12-2a-(2a+4)=0

We get rid of parentheses

-2a-2a-4+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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