a-8=12-4

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Solution for a-8=12-4 equation: 



a-8=12-4

We move all terms to the left:

a-8-(12-4)=0

We add all the numbers together, and all the variables

a-8-8=0

We add all the numbers together, and all the variables

a-16=0

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

a=16

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