8=2a+12-a+4

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Solution for 8=2a+12-a+4 equation: 



8=2a+12-a+4

We move all terms to the left:

8-(2a+12-a+4)=0

We add all the numbers together, and all the variables

-(a+16)+8=0

We get rid of parentheses

-a-16+8=0

We add all the numbers together, and all the variables

-1a-8=0

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

-a=8

a=8/-1

a=-8

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