-12=-5.5+a

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Solution for -12=-5.5+a equation: 



-12=-5.5+a

We move all terms to the left:

-12-(-5.5+a)=0

We add all the numbers together, and all the variables

-(a-5.5)-12=0

We get rid of parentheses

-a+5.5-12=0

We add all the numbers together, and all the variables

-1a-6.5=0

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

-a=6.5

a=6.5/-1

a=-6+0.5/1

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